What is a inflammation of a bursa?

Inflammation of a bursa is known as bursitis. Bursae are small, fluid-filled sacs that cushion and reduce friction between bones and soft tissues, such as muscles and tendons. When a bursa becomes inflamed, it can cause pain, swelling, and restricted movement in the affected area, commonly occurring in joints like the shoulder, elbow, hip, or knee. Bursitis can result from repetitive motion, injury, or underlying conditions such as Arthritis.