Bursitis

Bursitis is a condition that results when there is inflammation of one or more bursae. A bursa is a small, fluid-filled sac that acts as a cushion between tissues, such as muscles, bones, and tendons. The most common locations for bursitis to occur are over the elbows, shoulders, and knees. The most common symptoms of bursitis include pain, swelling, stiffness, and warmth over the affected area.