What Is It?
Polymyalgia rheumatica is a form of arthritis. It causes pain in the joints and muscles of the lower back, thighs, hips, neck, shoulder and upper arms, and other parts of the body.
The condition occurs when the lining surrounding the joints, bursa and tendons near the shoulders and hips becomes inflamed.
The disease is centered on the joints (especially the shoulders and hips). But the discomfort is felt in the upper arms and thighs. This type of pain is called referred pain. It arises in one area but causes symptoms in another.