Health Conditions

Iron deficiency anaemia

Iron deficiency anaemia is a condition where a lack of iron in the body leads to a reduction in the number of red blood cells.

Iron overload disorder

Haemochromatosis is an inherited condition in which iron levels in the body slowly build up over many years.

Irritable bowel syndrome

Irritable bowel syndrome (IBS) is a common, long-termcondition of the digestive system. Itcan cause bouts of stomach cramps, bloating, Traveller's diarrhoea and/or constipation .

Irritable hip

Irritable hip is a common childhood condition that causes symptoms such as hip pain and limping.

Isovaleric acidaemia

Isovaleric acidaemia (IVA) is a rare, but potentially serious, inherited condition. It means the body cant process the amino acid leucine (amino acids are 'building blocks' of prot…

IVF

In vitro fertilisation (IVF) is one of several techniques available to helppeople with fertility problems have a baby.

Japanese encephalitis

Japanese encephalitis is a type of viral brain infection that's spread through mosquito bites. It's most common in rural areas throughout South East Asia, the Pacific islands and t…

Jaundice

Jaundice is a term used to describe the yellowing of the skin and the whites of the eyes.

Jaundice in newborns

Jaundice is a common and usually harmless condition in newborn babies that causes yellowing of the skin and the whites of the eyes. The medical term for jaundice in babies is neona…

Jervell and Lange-Nielsen

Long QT syndrome causes problems with the electrical activity of the heart. It's uncommon, occurring in around 1 in every 2,000 people.

Jet lag

Jet lag refers to a range of symptoms experienced while adapting to a different light-dark schedule following a flight to a new time zone.

Joint hypermobility

Joint hypermobility means that some or all of a person's joints have an unusually large range of movement.

Joint pain

Joint pain is a very common problem withmany possible causes - but it's usually a result of injuryor arthritis.

Kawasaki disease

Kawasaki disease is a rare condition that mainly affects children under the age of five. It's also known as mucocutaneous lymph node syndrome.

Keratosis pilaris

Keratosis pilaris is a common andharmless condition where the skin becomes rough and bumpy, as if covered in permanent goose pimples.

Keto Diet

Kidney cancer

Kidney cancer,also called renal cancer,is one of the most common types of cancer in the UK.

Kidney stones

Kidney stones (renal lithiasis, nephrolithiasis) are hard deposits made of minerals and salts that form inside your kidneys.

Kidney transplant

A kidney transplant is the transfer of a healthy kidney from one person into the body of a person who has little or no kidney function.

Knee replacement

Knee replacement surgery (arthroplasty)is aroutine operation that involves replacing a damaged, worn or diseased knee with an artificial joint.

Knee surgery, anterior cruciate ligament

If you tear theanterior cruciate ligament (ACL) in your knee, you may need to have reconstructive surgery.

knee-pain

Sudden pain in one of the knees isusually the result of overusing the knee orinjuring it. In many cases, youdon't need to see your GP.

Kneecap dislocation

A dislocated kneecap is a common injury that normally takes about six weeks to heal.

Knock knees

A person with knock knees has a large gap between their feet when they're standing with their knees together.