Condition that consists of Muscle pain, Fatigue, Sleep disorders, Memory loss, Mood swings

bulge or lump in the affected area that disappears when lying down.

Sudden involuntary contraction of a muscle. May be caused by overuse of the muscle, dehydration or electrolyte imbalance

A group of diseases that cause progressive weakness and loss of muscle mass. Many different kinds. Mostly affects boys.

Tear to the muscle fibers or tendon

Caused by overuse or overload of tendon. Shoulder is most common followed by elbow.

Serious illness caused by Clostridium bacteria