Symptoms and Complications
The essential symptom of bursitis is pain that is localized near the joint, often accompanied by redness, tenderness, and swelling. The pain is likely to be worse when you make unaccustomed movements or strain the joint muscles. Many other diseases can cause joint pain, however, so it's important that you see a health care professional for a proper diagnosis. Very red, hot skin and extreme pain is often a sign of either crystal-induced arthritis or a bacterial infection.
Severe or long-lasting bursitis of the shoulder, for example, can lead to reduced movement or use of the joint and result in muscle atrophy (wasting). Permanent changes in the shape of the bursa, such as thickening or enlarging can occur and the surrounding tissues can become chronically inflamed.