Juvenile dermatomyositis (JDM) is a treatable autoimmune disease that affects muscles and skin. It is a rare disease effecting approximately 4 in 1 million children per year.

JDM is more common in girls than in boys with onset from between 4 and 10 years of age.

Signs and symptoms

Symptoms vary between children but the disease features a group of signs as listed below:

Treatment options

Although JDM can’t yet be cured, it usually responds well to treatment. This involves controlling the inflammation of the main symptoms using medications.