Myositis usually begins gradually. Sometimes the first sign is an unusual rash. Sometimes patients may start to trip or fall more frequently. Other signs include muscle weakness and sometimes pain, intense fatigue, and trouble climbing stairs or reaching over the head. Frequently, patients explain these symptoms away as signs of “getting old.” But myositis is a very real and often serious condition that needs to be taken seriously.

Myositis takes a number of different forms, including: