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5 Facts you should know about
Polymyositis
1
A group of muscle diseases, characterized by chronic muscle inflammation and weakness
2
Polymyositis mostly affects the skeletal muscle
3
Muscle weakness can cause difficulties climbing stairs, rising from a seated position, lifting objects, or reaching overhead
4
Most cases are seen in adults between the ages of 31 and 60 years
5
The disease is more common among women and among black individuals
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