What are the symptoms of polymyositis?

Answer:
Slowly progressing muscle weakness, usually symmetrical between the two sides of the body. Weakness of the muscles used for swallowing can cause difficulty. Joint pain and/or swelling also may be present.
First answer by Gale Ency. of Medicine. Last edit by Gale Ency. of Medicine. Contributor trust: 37 [recommend contributor recommended]. Question popularity: 3 [recommend question].