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Polymyositis

Names

Description

Polymyositis
PM

Polymyositis is inflammation of muscle tissue, causing chronic muscle weakness in both sides of the body.

Bloggers

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Prevalence

Polymyositis is a rare disease. It is estimated that there are between 1-9 cases per 100,000 people.

Typical Age of onset

Typically, polymyositis occurs after age 20. But it most commonly affects individuals between the ages of 31 and 60.

Symptoms

  • Inflammation of muscles

  • Muscle weakness in muscles of trunk (hips, thighs, shoulders, upper arms, and neck)

  • Difficulty climbing stairs

  • Difficulty lifting arms

  • Fatigue

  • Shortness of breath

  • Fever

  • Weight loss

  • Joint pain

  • Difficulty swallowing