Introduction

Myositis is a rare condition that affects the muscles. The term myositis means "inflammation of the muscles". The main signs are muscle weakness, painful or aching muscles, tripping or falling, and extreme tiredness after walking or standing. If you have any of these symptoms you should see your GP. Myositis is usually caused by an underlyingproblem with the immune system, where it mistakenly attacks healthy tissue. This page covers: Polymyositis Symptoms of polymyositis Symptoms of dermatomyositis Diagnosis Treatment Outlook Complications Help and support
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