Bursitis

Inflammation of a bursa, causing pain and swelling. Bursitis may result from pressure, friction, or slight injury to the membrane surrounding the joint, or to infection. For example, prepatellar bursitis (“housemaid’s knee”) is caused by prolonged kneeling on a hard surface. Avoiding further pressure and taking nonsteroidal anti-inflammatory drugs are usually all the treatment needed. Occasionally, antibiotic drugs may be needed if the bu rsa is infected.