Conditions

Mucositis is when your mouth or gut is sore and inflamed. It's a common side effect of chemotherapy and radiotherapy. Although mucositis can be painful, it usually gets better a few weeks after finishing cancer treatment.

Multiple sclerosis (MS) is a condition that affects the brain and spinal cord. It cannot currently be cured, but treatment can often help manage it.

Multiple system atrophy (MSA) is a rare condition that's caused by a loss of nerve cells in the brain. This can lead to a wide range of problems with muscle control and movement. It cannot currently be cured, but treatments are available to help manage the symptoms.

Mumps is an infection that causes painful swelling on the cheeks and neck. It usually gets better within 2 weeks but sometimes it causes other problems. It's important to see a GP if you think you or your child have mumps.

Muscular dystrophy is a rare genetic condition that causes muscle weakness that gets worse over time. There is currently no cure, but treatment can help with symptoms.

Myalgic encephalomyelitis, also called chronic fatigue syndrome or ME/CFS, is a long-term conditionthat can affect different parts of the body. The most common symptom is extreme tiredness. The cause of ME/CFS is unknown.

Myasthenia gravis is a rare long-term condition that causes muscle weakness.

Myelodysplastic syndrome (MDS), also called myelodysplasia, is a type of blood cancer. It's rare and mostly affects people over 70 years old.

Multiple myeloma is a type of blood cancer that affects your bones and different parts of your body.

Myositis is the name for a group of rare conditions that cause weak muscles. It slowly gets worse over time, but treatment with medicines and exercise can help.