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Bursitis Symptoms and Causes

Bursitis occurs when the bursa, a filmy-colored sac that protects and cushions your joints (particularly in the shoulders, elbows, hips and knees), becomes inflamed. Bursitis can cause pain, localized tenderness, and limited motion. Swelling and redness may occur if the inflamed bursa is close to the surface (superficial). Chronic bursitis may involve repeated attacks of pain, swelling, and tenderness, which may lead to the deterioration of muscles and a limited range of motion. Bursitis is usually a temporary condition. The most common causes are injury or overuse, although infection may also be a cause. Bursitis is also associated with other conditions such as arthritis, gout, tendinitis, diabetes, and thyroid disease.