Conditions

Measles is an infection that spreads very easily and can cause serious problems in some people. Having the MMR vaccine is the best way to prevent it.

Many people have persistent physical symptoms, such as dizziness or pain, that don't appear to be caused by a medical condition.

Melanoma skin cancer is a serious type of skin cancer that develops from melanocytes. It can spread rapidly if not detected early, but early diagnosis significantly improves outcomes.

Meningitis is an infection of the protective membranes that surround the brain and spinal cord (meninges).

A meniscus tear is a common type of damage to cartilage in the knee. The cartilage is found between the bones in the knee joint and protects them when you move. It usually gets damaged because of an injury.

Menopause is a natural stage of life marking the end of menstrual cycles, usually occurring between the ages of 45 and 55. It is associated with hormonal changes that can cause symptoms such as hot flushes, sleep problems, and mood changes.

Mesothelioma is a type of cancer that develops in the lining that covers the outer surface of some of the body's organs. It's usually linked to asbestos exposure.

Metabolic syndrome is the name for a group of health problems that put you at risk of type 2 diabetes or conditions that affect your heart or blood vessels. It's different from metabolic disorders which are rare genetic conditions.

Middle East respiratory syndrome (MERS) is an infection spread from contact with infected camels. It's rare but can be very serious, so it's important to get urgent help if you think you might have it.

A migraine usually feels like a very bad headache with a throbbing pain on 1 side. It's common and there are things you can try to help.