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Cavernous sinus thrombosis
https://www.nhs.uk/conditions/cavernous-sinus-thrombosis/
Cavernous sinus thrombosis is a blood clot in the cavernous sinuses. It can be life-threatening. The cavernous sinuses are hollow spaces located under the brain, behind each eye socket. A major blood vessel called the jugular vein carries blood through the cavernous sinuses away from the brain. A blood clot can develop...
Cellulitis
https://www.nhs.uk/conditions/cellulitis/
Urgent advice: Ask for an urgent GP appointment or get help from NHS 111 if: your skin is painful, hot and swollenEarly treatment with antibiotics can stop cellulitis becoming more serious. You can call 111 or get help from 111 online. Check if you have cellulitis Cellulitis makes your skin painful, hot and swollen. ...
Cerebral palsy
https://www.nhs.uk/conditions/cerebral-palsy/
Cerebral palsy is the name for a group of lifelong conditions that affect movement and co-ordination. It's caused by a problem with the brain that develops before, during or soon after birth. Symptoms of cerebral palsyThe symptoms of cerebral palsy are not usually obvious just after a baby is born. They normally becom...
Cervical cancer
https://www.nhs.uk/conditions/cervical-cancer/
What is cervical cancer? Symptoms Causes Tests and next steps Treatment Help and support
Cervical screening
https://www.nhs.uk/conditions/cervical-screening/
What is cervical screening? Why it's important When you'll be invited How to book What happens at your appointment Your results Further help and support
Cervical spondylosis
https://www.nhs.uk/conditions/cervical-spondylosis/
Cervical spondylosis is a common condition that can cause neck and shoulder pain, often in people over 40. A GP should check more serious cases affecting the spine. Check if it's cervical spondylosis Symptoms of cervical spondylosis include:neck and shoulder pain or stiffness that can come and goheadaches that often s...
Charcot-Marie-Tooth disease
https://www.nhs.uk/conditions/charcot-marie-tooth-disease/
Charcot-Marie-Tooth disease (CMT) is a group of inherited conditions that damage the peripheral nerves. It's also known as hereditary motor and sensory neuropathy (HMSN) or peroneal muscular atrophy (PMA). The peripheral nerves are found outside the main central nervous system (brain and spinal cord). They control the ...
Charles Bonnet syndrome
https://www.nhs.uk/conditions/charles-bonnet-syndrome/
Charles Bonnet syndrome is a condition where you see things that are not real (hallucinations). It can happen if you've lost a lot of your sight. It's not caused by a mental health problem or dementia. Check if it's Charles Bonnet syndrome The main symptom of Charles Bonnet syndrome is seeing things that are not real ...
Chemotherapy
https://www.nhs.uk/conditions/chemotherapy/
Chemotherapy is a cancer treatment where medicine is used to kill cancer cells. There are many different types of chemotherapy medicine, but they all work in a similar way. They stop cancer cells reproducing, which prevents them from growing and spreading in the body. When chemotherapy is usedChemotherapy may be used ...
Chest infection
https://www.nhs.uk/conditions/chest-infection/
A chest infection is an infection of the lungs or large airways. Some chest infections are mild and clear up on their own, but others can be severe and life threatening. Check if you have a chest infection Chest infections often follow colds or flu. The main symptoms are:a chesty cough – you may cough up green or yell...
Chest pain
https://www.nhs.uk/conditions/chest-pain/
Most chest pain is not a sign of anything serious but get medical advice just in case. Get immediate medical help if you think you're having a heart attack. Immediate action required: Call 999 if: you get sudden pain or discomfort in your chest that does not go away – the pain can feel like squeezing or pressure insi...
Chiari malformation
https://www.nhs.uk/conditions/chiari-malformation/
A Chiari malformation, previously called an Arnold-Chiari malformation, is where the lower part of the brain pushes down into the spinal canal. Credit: Multimedia Team - nhs.uk There are 4 main types, but type 1, called Chiari I, is the most common. In someone with Chiari I, the lowest part of the back of the brain e...
Chickenpox
https://www.nhs.uk/conditions/chickenpox/
Chickenpox is common and mostly affects children, but you can get it at any age. It usually gets better by itself after 1 to 2 weeks without needing to see a GP. Check if it's chickenpox An itchy, spotty rash is the main symptom of chickenpox. It can be anywhere on the body. Chickenpox happens in 3 stages. But new spo...
Chilblains
https://www.nhs.uk/conditions/chilblains/
Chilblains are small, itchy patches that can appear on your skin after you've been in the cold. They usually clear up on their own. You may need to see a GP if they do not go away. Check if you have chilblains Chilblains usually appear a few hours after you've been in the cold. You mostly get them on your fingers and ...
Childhood cataracts
https://www.nhs.uk/conditions/childhood-cataracts/
Cataracts occur when changes in the lens of the eye cause it to become less transparent (clear). This results in cloudy or misty vision. The lens is the transparent structure located just behind the pupil (the black circle in the centre of the eye). It allows light to pass through to the light-sensitive layer of tissue...
Chipped, broken or cracked tooth
https://www.nhs.uk/conditions/chipped-broken-or-cracked-tooth/
Chipping, breaking or cracking a tooth is usually not serious. A dentist should be able to treat it. Non-urgent advice: See a dentist if you or your child has: chipped, cracked or broken a toothIf a piece of tooth has broken off, put it in milk or saliva (by spitting into a container if it's your tooth, or having you...
Chiropractic
https://www.nhs.uk/conditions/chiropractic/
Chiropractic is a treatment where a practitioner called a chiropractor uses their hands to help relieve problems with the bones, muscles and joints. It's considered a type of complementary and alternative medicine (CAM), which means it's not a conventional medical treatment. Uses of chiropractic Chiropractic can mainl...
Chlamydia
https://www.nhs.uk/conditions/chlamydia/
Chlamydia is 1 of the most common sexually transmitted infections (STIs) in the UK. It's passed on through unprotected sex (sex without a condom) and is particularly common in sexually active teenagers and young adults. If you're a woman, sexually active and under 25 in England, it's recommended that you have a chlamyd...
Cholecystitis (acute), see Acute cholecystitis
https://www.nhs.uk/conditions/acute-cholecystitis/
Acute cholecystitis is inflammation of the gallbladder. It usually happens when a gallstone blocks the cystic duct. Gallstones are small stones, usually made of cholesterol, that form in the gallbladder. The cystic duct is the main opening of the gallbladder. Gallstones are very common, affecting more than 1 in 10 adul...
Cholera
https://www.nhs.uk/conditions/cholera/
Check if you could be at risk of cholera Cholera is not found in the UK. It's mostly found in parts of Africa and Asia, in places without a clean water supply. You can get cholera from:drinking unclean watereating food (particularly shellfish) that's been in unclean watereating food that's been handled by an infected p...
Cholesteatoma
https://www.nhs.uk/conditions/cholesteatoma/
A cholesteatoma is an abnormal collection of skin cells deep inside your ear. They're rare but, if left untreated, they can damage the delicate structures inside your ear that are essential for hearing and balance. A cholesteatoma can also lead to:an ear infection – causing discharge from the earhearing loss – this can...
Cholesterol (high), see High cholesterol
https://www.nhs.uk/conditions/high-cholesterol/
High cholesterol is when you have too much of a fatty substance called cholesterol in your blood. It's mainly caused by eating fatty food, not exercising enough, being overweight, smoking and drinking alcohol. It can also run in families. You can lower your cholesterol by eating healthily and getting more exercise. Som...
Chorionic villus sampling
https://www.nhs.uk/conditions/chorionic-villus-sampling-cvs/
Chorionic villus sampling (CVS) is a test you may be offered during pregnancy to check if your baby has a genetic or chromosomal condition, such as Down's syndrome, Edwards' syndrome or Patau's syndrome. It involves removing and testing a small sample of cells from the placenta, the organ linking the mother's blood sup...
Chronic fatigue syndrome (ME/CFS), see Myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS)
https://www.nhs.uk/conditions/chronic-fatigue-syndrome-cfs/
Myalgic encephalomyelitis, also called chronic fatigue syndrome or ME/CFS, is a long-term condition that can affect different parts of the body. The most common symptom is extreme tiredness. The cause of ME/CFS is unknown. ME/CFS can affect anyone, including children. Symptoms of ME/CFS The 4 main symptoms of ME/CFS a...
Chronic kidney disease
https://www.nhs.uk/conditions/kidney-disease/
Chronic kidney disease (CKD) is a long-term condition where the kidneys do not work as well as they should. It's a common condition often associated with getting older. It can affect anyone, but it's more common in people who are black or of south Asian origin. CKD can get worse over time and eventually the kidneys may...
Chronic lymphocytic leukaemia
https://www.nhs.uk/conditions/chronic-lymphocytic-leukaemia/
Chronic lymphocytic leukaemia is a rare type of cancer that affects the blood and bone marrow. It usually develops very slowly and does not always need to be treated straight away. Chronic lymphocytic leukaemia cannot usually be cured, but it can be managed with treatment. It's more common as you get older. It's very r...
Chronic myeloid leukaemia
https://www.nhs.uk/conditions/chronic-myeloid-leukaemia/
What is chronic myeloid leukaemia? Symptoms Causes Tests and next steps Treatment Help and support
Chronic obstructive pulmonary disease (COPD)
https://www.nhs.uk/conditions/chronic-obstructive-pulmonary-disease-copd/
Chronic obstructive pulmonary disease (COPD) is the name for a group of lung conditions that cause breathing difficulties. It includes:emphysema – damage to the air sacs in the lungschronic bronchitis – long-term inflammation of the airwaysCOPD is a common condition that mainly affects middle-aged or older adults who s...
Chronic pancreatitis
https://www.nhs.uk/conditions/chronic-pancreatitis/
Chronic pancreatitis is a condition where the pancreas has become permanently damaged from inflammation and stops working properly. The pancreas is a small organ, located behind the stomach, that helps with digestion. Chronic pancreatitis can affect people of any age. It is more common in men. It's different from acute...
Chronic traumatic encephalopathy
https://www.nhs.uk/conditions/chronic-traumatic-encephalopathy/
Chronic traumatic encephalopathy (CTE) is a brain condition thought to be linked to repeated head injuries and blows to the head. It slowly gets worse over time and leads to dementia, but the right help and support can manage the symptoms. Check if you have chronic traumatic encephalopathy (CTE) Early symptoms of chro...
Circumcision in boys
https://www.nhs.uk/conditions/circumcision-in-boys/
Male circumcision is the surgical removal of the foreskin. The foreskin is the roll of skin that covers the end of the penis. Medical reasons for a boy to have a circumcision It's rare for circumcision to be recommended for medical reasons in boys. This is because other less invasive and less risky treatments are usua...
Circumcision in men
https://www.nhs.uk/conditions/circumcision-in-men/
Circumcision is the surgical removal of the foreskin. The foreskin is the retractable fold of skin that covers the end of the penis. It's a continuation of the skin that covers the whole penis. This page focuses on circumcision for medical reasons in men. Read about circumcision for medical reasons in boys Why circumc...
Cirrhosis
https://www.nhs.uk/conditions/cirrhosis/
Cirrhosis is scarring (fibrosis) of the liver caused by long-term liver damage. The scar tissue prevents the liver working properly. Cirrhosis is sometimes called end-stage liver disease because it happens after other stages of damage from conditions that affect the liver, such as hepatitis. Your liver may keep working...
CJD, see Creutzfeldt-Jakob disease
https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/
Creutzfeldt-Jakob disease (CJD) is a rare and fatal condition that affects the brain. It causes brain damage that worsens rapidly over time. Symptoms of CJD Symptoms of CJD include:loss of intellect and memorychanges in personalityloss of balance and co-ordinationslurred speechvision problems and blindnessabnormal jer...
Cleft lip and palate
https://www.nhs.uk/conditions/cleft-lip-and-palate/
A cleft is a gap or split in the upper lip and/or roof of the mouth (palate). It is present from birth. The gap is there because parts of the baby's face did not join together properly during development in the womb. What does a cleft lip and palate look like?Babies can be born with a cleft lip, a cleft palate, or bot...
Clinical trials
https://www.nhs.uk/conditions/clinical-trials/
A clinical trial compares the effects of 1 treatment with another. It may involve patients, healthy people, or both. How do I take part in a clinical trial? You can ask your doctor or a patient organisation if they know of any clinical trials that you may be eligible to join. You can also search for information on a n...
Clostridium difficile (C. diff) infection
https://www.nhs.uk/conditions/c-difficile/
Clostridium difficile (C. diff) is a type of bacteria that can cause diarrhoea. It often affects people who have been taking antibiotics. It can usually be treated with a different type of antibiotic. Check if you have a C. diff infection Common symptoms of a C. diff infection include:diarrhoeaa high temperatureloss o...
Club foot
https://www.nhs.uk/conditions/club-foot/
Club foot (also called talipes) is where a baby is born with a foot or feet that turn in and under. Early treatment should correct it. In club foot, 1 foot or both feet point down and inwards with the sole of the foot facing backwards. Credit: DR M. A. ANSARY/SCIENCE PHOTO LIBRARY https://www.sciencephoto.com/media/2...
Cluster headaches
https://www.nhs.uk/conditions/cluster-headaches/
Check if it's a cluster headache Cluster headaches are severe headaches that can happen multiple times a day and continue for weeks or months. They may stop for a while (weeks, months or years), or there may be no gap between headaches. The main symptoms of a cluster headache include:a sharp, burning or piercing pain, ...
Coccyx pain, see Tailbone (coccyx) pain
https://www.nhs.uk/conditions/tailbone-coccyx-pain/
Tailbone pain is pain in the bone at the base of the spine (coccyx), near the top of your bottom. There are things you can do to ease the pain, but get medical help if it does not get better after a few weeks. Check if you have tailbone (coccyx) pain The main symptom of tailbone (coccyx) pain is pain and tenderness at...
Coeliac disease
https://www.nhs.uk/conditions/coeliac-disease/
Coeliac disease is a condition where your immune system attacks your own tissues when you eat gluten. This damages your gut (small intestine) so your body cannot properly take in nutrients. Coeliac disease can cause a range of symptoms, including diarrhoea, abdominal pain and bloating. Coeliac disease is caused by an a...
Cold sores
https://www.nhs.uk/conditions/cold-sores/
Check if it's a cold sore A cold sore usually starts with a tingling, itching or burning feeling. Over the next 48 hours one or more painful blisters will appear on your face. Cold sore blisters are usually small and filled with fluid. Credit: SCIENCE SOURCE/SCIENCE PHOTO LIBRARY https://www.sciencephoto.com/media/25...
Colic
https://www.nhs.uk/conditions/colic/
Colic is when a baby cries a lot but there's no obvious cause. It's a common problem that should get better by around 3 or 4 months of age. But call NHS 111 or see a GP if you're worried. Check if your baby has colic All babies cry, but your baby may have colic if they cry more than 3 hours a day, 3 days a week for at...
Colon cancer, see Bowel cancer
https://www.nhs.uk/conditions/bowel-cancer/
What is bowel cancer? Symptoms Causes Tests and next steps Treatment Help and support
Colonoscopy
https://www.nhs.uk/conditions/colonoscopy/
A colonoscopy is a test to check inside your bowels. This test can help find what's causing your bowel symptoms. A long, thin, flexible tube with a small camera inside it is passed into your bottom. You'll be given a laxative so your bowels are empty for the test. Important You're usually awake during a colonoscopy. Y...
Colostomy
https://www.nhs.uk/conditions/colostomy/
A colostomy is an operation to divert 1 end of the colon (part of the bowel) through an opening in the tummy. The opening is called a stoma. A pouch can be placed over the stoma to collect your poo (stools). A colostomy can be permanent or temporary. When a colostomy is neededA colostomy may be needed if you cannot pa...
Colour blindness, see Colour vision deficiency (colour blindness)
https://www.nhs.uk/conditions/colour-vision-deficiency/
Colour vision deficiency (colour blindness) is where you see colours differently to most people, and have difficulty telling colours apart. There's no treatment for colour vision deficiency that runs in families, but people usually adapt to living with it. Check if it's colour vision deficiency The main symptom of col...
Colour vision deficiency (colour blindness)
https://www.nhs.uk/conditions/colour-vision-deficiency/
Colour vision deficiency (colour blindness) is where you see colours differently to most people, and have difficulty telling colours apart. There's no treatment for colour vision deficiency that runs in families, but people usually adapt to living with it. Check if it's colour vision deficiency The main symptom of col...
Colposcopy
https://www.nhs.uk/conditions/colposcopy/
A colposcopy is a test to take a closer look at your cervix. The cervix is the opening to your womb from your vagina. A colposcopy is often done if cervical screening finds changes to your cells that are caused by certain types of human papillomavirus (HPV). These changed cells can turn into cervical cancer cells. Duri...
Common cold
https://www.nhs.uk/conditions/common-cold/
Check if you have a cold Cold symptoms come on gradually over 2 to 3 days. The main symptoms include:a blocked or runny nosesneezinga sore throata hoarse voicea coughfeeling tired and unwellYou may also have:a high temperatureaching musclesa loss of taste and smella feeling of pressure in your ears and faceSymptoms of ...
Compartment syndrome
https://www.nhs.uk/conditions/compartment-syndrome/
Compartment syndrome is an increase in pressure inside a muscle, which restricts blood flow and causes pain. If it happens suddenly, it can be serious and need treatment as soon as possible. Check if you have compartment syndrome You can get compartment syndrome in any muscle, but it most often affects the muscles in ...
Complementary and alternative medicine
https://www.nhs.uk/conditions/complementary-and-alternative-medicine/
Complementary and alternative medicine (CAM) is treatment that falls outside of mainstream healthcare. These treatments range from acupuncture and homeopathy, to aromatherapy, meditation and colonic irrigation. Defining CAMThere's no universally agreed definition of CAM. Although "complementary and alternative" is oft...
Complex regional pain syndrome
https://www.nhs.uk/conditions/complex-regional-pain-syndrome/
Complex regional pain syndrome (CRPS) is a poorly understood condition where a person experiences persistent severe and debilitating pain. Although most cases of CRPS are triggered by an injury, the resulting pain is much more severe and long-lasting than normal. The pain usually only affects 1 limb, but it can sometim...
Concussion, see Head injury and concussion
https://www.nhs.uk/conditions/head-injury-and-concussion/
Most head injuries are not serious, but you should get medical help if you or your child have any symptoms after a head injury. You might have concussion (temporary brain injury) that can last a few weeks. Urgent advice: Go to A&E if: You or your child have had a head injury and have:been knocked out but have now wok...
Confusion (sudden), see Sudden confusion (delirium)
https://www.nhs.uk/conditions/confusion/
How to tell if someone is confused If a person is confused, they may:not be able to think or speak clearly or quicklynot know where they are (feel disorientated)struggle to pay attention or remember thingssee or hear things that are not there (hallucinations)Try asking the person their name, their age and today's date....
Congenital heart disease
https://www.nhs.uk/conditions/congenital-heart-disease/
Congenital heart disease is a general term for a range of birth defects that affect the normal way the heart works. The term "congenital" means the condition is present from birth. Congenital heart disease is one of the most common types of birth defect, affecting almost 1 in 100 babies born in the UK. Why it happens ...
Congenital hip dislocation, see Developmental dysplasia of the hip
https://www.nhs.uk/conditions/developmental-dysplasia-of-the-hip/
Developmental dysplasia of the hip (DDH) is a condition where the "ball and socket" joint of the hip does not properly form in babies and young children. It's sometimes called congenital dislocation of the hip, or hip dysplasia. The hip joint attaches the thigh bone (femur) to the pelvis. The top of the femur (femoral ...
Conjunctivitis
https://www.nhs.uk/conditions/conjunctivitis/
Check if you have conjunctivitis Conjunctivitis is also known as red or pink eye. It usually affects both eyes and makes them:redburn or feel grittyproduce pus that sticks to lashesitchwater Conjunctivitis that produces sticky pus is contagious. Credit: DR P. MARAZZI/SCIENCE PHOTO LIBRARY https://www.sciencephoto.com...
Consent to treatment
https://www.nhs.uk/conditions/consent-to-treatment/
Consent to treatment means a person must give permission before they receive any type of medical treatment, test or examination. This must be done on the basis of an explanation by a clinician. Consent from a patient is needed regardless of the procedure, whether it's a physical examination or something else. The princ...
Constipation
https://www.nhs.uk/conditions/constipation/
Constipation is where you have changes to how you poo, including not pooing as often or finding it hard to poo. It's common and it affects people of all ages. You can usually treat it with simple changes to your diet and lifestyle. This page is about constipation in adults. There's separate information on constipation ...
Contact dermatitis
https://www.nhs.uk/conditions/contact-dermatitis/
Contact dermatitis is a type of eczema triggered by contact with a particular substance. Eczema is the name for a group of conditions that cause skin to become dry and irritated. Contact dermatitis usually improves or clears up completely if the substance causing the problem is identified and avoided. Treatments are al...
Continuous glucose monitoring and hybrid closed loop for diabetes
https://www.nhs.uk/conditions/cgm-and-hcl-for-diabetes/
What is a continuous glucose monitor? A continuous glucose monitor (CGM) is a device for people with diabetes that lets you check your glucose (sugar) levels at any time. It lets you see patterns in your levels and check if your blood glucose is too high or low. It can help you control your blood glucose levels, as you...
Cornea transplant
https://www.nhs.uk/conditions/cornea-transplant/
A cornea transplant is an operation to remove all or part of a damaged cornea and replace it with healthy donor tissue. A cornea transplant is often referred to as keratoplasty or a corneal graft. It can be used to improve sight, relieve pain and treat severe infection or damage. One of the most common reasons for a co...
Corns and calluses
https://www.nhs.uk/conditions/corns-and-calluses/
Corns and calluses are hard or thick areas of skin that can be painful. They're not often serious. There are things you can try to ease them yourself. Check if you have a corn or callus You mostly get corns and calluses on your feet, toes and hands. Corns are small lumps of hard skin. Credit: Alexander Korzh / Alamy...
Coronary angioplasty and stent insertion
https://www.nhs.uk/conditions/coronary-angioplasty/
A coronary angioplasty is a procedure used to widen blocked or narrowed coronary arteries (the main blood vessels supplying the heart). The term "angioplasty" means using a balloon to stretch open a narrowed or blocked artery. However, most modern angioplasty procedures also involve inserting a short wire mesh tube, ca...
Coronary artery bypass graft
https://www.nhs.uk/conditions/coronary-artery-bypass-graft-cabg/
A coronary artery bypass graft (CABG) is a surgical procedure used to treat coronary heart disease. It diverts blood around narrowed or clogged parts of the major arteries to improve blood flow and oxygen supply to the heart. Why it's carried out Like all organs in the body, the heart needs a constant supply of blood....
Coronary heart disease
https://www.nhs.uk/conditions/coronary-heart-disease/
Coronary heart disease (CHD) is a major cause of death in the UK and worldwide. CHD is sometimes called ischaemic heart disease or coronary artery disease. Symptoms of coronary heart disease (CHD) The main symptoms of coronary heart disease are:chest pain (angina)shortness of breathpain in your neck, shoulders, jaw or...
Coronavirus, see COVID-19
https://www.nhs.uk/conditions/covid-19/
Symptoms and what to do How to avoid catching and spreading Treatments Long-term effects (long-COVID) Related information about COVID-19 COVID-19 services COVID-19 vaccination
Corticobasal degeneration
https://www.nhs.uk/conditions/corticobasal-degeneration/
Corticobasal degeneration (CBD) is a rare condition that can cause gradually worsening problems with movement, speech, memory and swallowing. It's often also called corticobasal syndrome (CBS). CBD is caused by increasing numbers of brain cells becoming damaged or dying over time. Most cases of CBD develop in adults ag...
Corticosteroid cream, see Topical corticosteroids
https://www.nhs.uk/conditions/topical-steroids/
Topical corticosteroids are a type of steroid medicine applied directly to the skin to reduce inflammation and irritation. Topical corticosteroids are available in several different forms, including:creamslotionsgelsmoussesointmentstapes and bandagessolutionsThey're available in 4 different strengths (potencies):mildmo...
Corticosteroids, see Steroids
https://www.nhs.uk/conditions/steroids/
Steroids, also called corticosteroids, are anti-inflammatory medicines used to treat a range of conditions. They're different from anabolic steroids, which are often used illegally by some people to increase their muscle mass. Types of steroids Steroids come in many different forms. The main types are:tablets and liqu...
Cosmetic procedures
https://www.nhs.uk/conditions/cosmetic-procedures/
Top tasks in Cosmetic procedures Before you have a cosmetic procedure Is cosmetic surgery available on the NHS? Advice about cosmetic procedures Advice about things to consider if you're thinking about having a cosmetic procedure Cosmetic surgery Information about common types of cosmetic surgery, including lipos...
Costochondritis
https://www.nhs.uk/conditions/costochondritis/
Costochondritis is inflammation where your ribs join the bone in the middle of your chest (breastbone). It can cause sharp chest pain, especially when moving or breathing. It usually gets better on its own over time. Check if you have costochondritis Costochondritis may cause sharp pain in the front or side of your ch...
Cough
https://www.nhs.uk/conditions/cough/
A cough will usually clear up on its own within 3 to 4 weeks. How you can treat a cough yourself There's usually no need to see a GP if you have a cough. You should:restdrink plenty of fluidstry to stay at home and avoid contact with other people if you have a high temperature or you do not feel well enough to do your...
Coughing up blood (blood in phlegm)
https://www.nhs.uk/conditions/coughing-up-blood/
Causes of coughing up blood Common causes of coughing up blood include:a long-lasting or severe cougha lung or airway infection like a chest infection, pneumonia, tuberculosis or bronchitisa problem with your airways that causes them to widen and produce more mucus (bronchiectasis)Sometimes coughing up blood can be a s...
COVID-19
https://www.nhs.uk/conditions/covid-19/
Symptoms and what to do How to avoid catching and spreading Treatments Long-term effects (long-COVID) Related information about COVID-19 COVID-19 services COVID-19 vaccination
Cradle cap
https://www.nhs.uk/conditions/cradle-cap/
Check if your baby has cradle cap The main symptom of cradle cap is patches of greasy, scaly skin. It's usually found on the scalp and face, but sometimes affects the nappy area. It can look like:patches of white or yellow greasy scales on the scalp and face that form a crust which might flake offsmall, dry flakes of s...
Craniosynostosis
https://www.nhs.uk/conditions/craniosynostosis/
Craniosynostosis is a rare condition where a baby's skull does not grow properly and their head becomes an unusual shape. It's usually treated with surgery. Check if your baby has craniosynostosis Babies' heads come in all shapes and sizes. It's normal for their head to be a slightly unusual shape. It will often get b...
Creutzfeldt-Jakob disease
https://www.nhs.uk/conditions/creutzfeldt-jakob-disease-cjd/
Creutzfeldt-Jakob disease (CJD) is a rare and fatal condition that affects the brain. It causes brain damage that worsens rapidly over time. Symptoms of CJD Symptoms of CJD include:loss of intellect and memorychanges in personalityloss of balance and co-ordinationslurred speechvision problems and blindnessabnormal jer...
Crohn's disease
https://www.nhs.uk/conditions/crohns-disease/
Crohn's disease is a lifelong condition where parts of the digestive system become inflamed. It's one type of a condition called inflammatory bowel disease (IBD). Symptoms of Crohn's disease Crohn's disease affects people of all ages. The symptoms usually start in childhood or early adulthood. The main symptoms are:di...
Croup
https://www.nhs.uk/conditions/croup/
Croup is a common condition that mainly affects babies' and young children's airways. It's usually mild, but it's important to call NHS 111 or see a GP if you think your child has croup. This is because they may need treatment. Check if your child has croup Symptoms of croup include:a barking cough – this may sound li...
CT scan
https://www.nhs.uk/conditions/ct-scan/
A CT scan is a test that takes detailed pictures of the inside of your body. It's usually used to diagnose conditions or check how well treatment is working. Why a CT scan is done You may be referred for a CT scan to:check your bones or internal organs after an accidentfind out if symptoms you've been having are cause...
Cushing's syndrome
https://www.nhs.uk/conditions/cushings-syndrome/
Cushing's syndrome is a condition caused by having too much of a hormone called cortisol in your body. It can be serious if it's not treated. Who gets it and why Cushing's syndrome is uncommon. It mostly affects people who have been taking steroid medicine, especially steroid tablets, for a long time. Steroids contain...
Cuts and grazes
https://www.nhs.uk/conditions/cuts-and-grazes/
Most cuts and grazes can be treated at home and will start to heal in a few days. But some wounds may need to be treated by a medical professional if there's a risk of infection or the cut is serious. How to treat a cut or graze yourself You can treat a cut or graze yourself by stopping any bleeding, cleaning the woun...
Cyanosis, see Blue or grey skin or lips (cyanosis)
https://www.nhs.uk/conditions/blue-skin-or-lips-cyanosis/
Cyanosis is where your skin or lips turn blue or grey. It can be a sign of a serious problem. How to tell if you have blue or grey skin or lips (cyanosis) If you have cyanosis, you may notice a blue or grey colour on your:lipstonguegumsskin (black or brown skin may turn grey - this may be easier to see on the palms of...
Cyclical vomiting syndrome
https://www.nhs.uk/conditions/cyclical-vomiting-syndrome/
Check if it's cyclical vomiting syndrome The main symptoms of cyclical vomiting syndrome are severe episodes of feeling sick (nausea) and being sick (vomiting), followed by periods of feeling well. Each episode can last anything from a few hours up to a few days. They begin with sweating, feeling sick and looking paler...
Cyclospora
https://www.nhs.uk/conditions/cyclospora/
Cyclospora is an infection that causes diarrhoea. It's not found in the UK, but there's a risk of getting it while travelling in some parts of the world. Check if you're at risk of cyclospora You can get cyclospora from drinking unclean water or eating food that has not been cooked thoroughly or washed with clean wate...
Cystic fibrosis
https://www.nhs.uk/conditions/cystic-fibrosis/
Cystic fibrosis is an inherited condition that causes sticky mucus to build up in the lungs and digestive system. This causes lung infections and problems with digesting food. In the UK, most cases of cystic fibrosis are picked up at birth using the newborn screening heel prick test. Symptoms usually start in early chi...
Cystitis
https://www.nhs.uk/conditions/cystitis/
Cystitis is a urinary tract infection (UTI) that affects the bladder. It's common, particularly in women. It often gets better by itself, but may sometimes be treated with antibiotics. Some people get cystitis frequently and may need regular or long-term treatment. Check if it's cystitis Symptoms of cystitis include:p...
Cystoscopy
https://www.nhs.uk/conditions/cystoscopy/
What is it Why it's done Getting ready How it's done Results Complications
Cytomegalovirus (CMV)
https://www.nhs.uk/conditions/cytomegalovirus-cmv/
Cytomegalovirus (CMV) is a common virus that's usually harmless. Sometimes it causes problems in babies and people with a weakened immune system. Symptoms of cytomegalovirus (CMV) Cytomegalovirus (CMV) does not usually cause any symptoms and most people do not realise they have it. Some people get flu-like symptoms th...
Dandruff
https://www.nhs.uk/conditions/dandruff/
Dandruff is a common skin condition. It's not harmful and you cannot catch it. Check if it's dandruff Dandruff causes white or grey flakes of skin to appear on the scalp and in the hair. Credit: DR P. MARAZZI/SCIENCE PHOTO LIBRARY https://www.sciencephoto.com/media/256156/view The flakes are often more noticeable i...
Deafblindness
https://www.nhs.uk/conditions/deafblindness/
Deafblindness is a combination of sight and hearing loss that affects a person's ability to communicate, access information and get around. It's also sometimes called "dual sensory loss" or "multi-sensory impairment". A deafblind person won't usually be totally deaf and totally blind, but both senses will be reduced en...
Deafness, see Hearing loss
https://www.nhs.uk/conditions/hearing-loss/
Hearing loss is common, particularly as you get older. See a GP if you have problems with your hearing. It could be caused by something that can be easily treated. Signs of hearing loss It's not always easy to tell if you're losing your hearing. Common signs include:difficulty hearing other people clearly and misunder...
Decongestants
https://www.nhs.uk/conditions/decongestants/
Decongestants are a type of medicine that can provide short-term relief for a blocked or stuffy nose (nasal congestion). They can help ease the symptoms of conditions such as colds and flu, hay fever and other allergic reactions, catarrh and sinusitis. They work by reducing the swelling of the blood vessels in your nos...
Dehydration
https://www.nhs.uk/conditions/dehydration/
Dehydration means your body loses more fluids than you take in. If it's not treated, it can get worse and become a serious problem. Important Babies, children and older adults are more at risk of dehydration. Check if you're dehydrated Symptoms of dehydration in adults and children include:feeling thirstydark yellow,...
Delirium, see Sudden confusion (delirium)
https://www.nhs.uk/conditions/confusion/
How to tell if someone is confused If a person is confused, they may:not be able to think or speak clearly or quicklynot know where they are (feel disorientated)struggle to pay attention or remember thingssee or hear things that are not there (hallucinations)Try asking the person their name, their age and today's date....
Dementia
https://www.nhs.uk/conditions/dementia/
Top tasks in Dementia Sign up for dementia emails About dementia Find out what dementia is, including what causes it, if it can be prevented and how it's treated Symptoms and diagnosis Find out about the main symptoms of dementia, how to get diagnosed and what to do if you've been diagnosed Living with dementia ...
Dementia (frontotemporal), see Frontotemporal dementia
https://www.nhs.uk/conditions/frontotemporal-dementia/
Frontotemporal dementia is an uncommon type of dementia that causes problems with behaviour and language. Dementia is the name for problems with mental abilities caused by gradual changes and damage in the brain. Frontotemporal dementia affects the front and sides of the brain (the frontal and temporal lobes). Dementia...
Dementia (vascular), see Vascular dementia
https://www.nhs.uk/conditions/vascular-dementia/
Vascular dementia is a common type of dementia caused by reduced blood flow to the brain. It's estimated to affect around 180,000 people in the UK. Dementia is the name for problems with mental abilities caused by gradual changes and damage in the brain. It's rare in people under 65. Vascular dementia tends to get wors...