bursitis

Bursitis is the inflammation of the bursae, which are small, fluid-filled sacs located near joints. These sacs act as cushions, reducing friction between bones, tendons, and muscles during movement. When bursae become irritated or inflamed—often due to injury, repetitive motion, or pressure—they cause pain, swelling, and discomfort around the affected joint. Commonly affected areas include the shoulder, elbow, hip, and knee. Treatment typically involves rest, anti-inflammatory medications, physical therapy, and sometimes injections to reduce inflammation, allowing the bursae to heal and restoring mobility.