Cách sử dụng
Bursitis is a medical condition that affects joints, especially those that are frequently used like elbows, knees, and shoulders. It is an inflammation of a small, fluid-filled sac called a bursa that cushions the joint and helps it move smoothly. Bursitis can cause pain, swelling, and stiffness in the affected joint. It usually happens because of overuse, injury, or infection. If you experience any symptoms of bursitis, you should see a doctor who can diagnose and treat the condition.