Published: June 22, 2011
Updated: June 22, 2011
Bursae of the knee are fluid-filled sacs that allow the muscle, tendon, and skin to slide easily over the bones. When the bursae in the knee become inflamed or irritated, this is known as knee bursitis.
Knee bursitis usually occurs over the knee cap (patella) or on the inner side of the knee.
A number of outside forces can cause the bursae to become inflamed, including:
Pain, swelling, redness, and limited mobility are all symptoms of knee bursitis.
Knee bursitis is usually diagnosed during a physical examination of the knee.
Inflammation and irritation associated with bursitis can often be relieved by using anti-inflammatory medication, resting the knee, or simply avoiding whatever activity caused the bursitis.
When those methods fail to reduce the symptoms of bursitis, your doctor can aspirate, or drain, the knee joint using a needle and syringe.
Watch an educational video about knee bursitis.