Tendinitis is inflammation of a tendon. A tendon is a cord or band that connects a muscle to a bone.
What is going on in the body?
Tendons are usually smooth and strong. With age or overuse, tendons can become worn and weak, leading to tendinitis. Tendinitis occurs most often in the shoulder, elbow, wrist, hip, knee, and ankle.
What are the causes and risks of the condition?
Tendinitis is caused by overuse, injury, or aging. It can be associated with inflammatory diseases that occur throughout the body, such as rheumatoid arthritis. Rarely it is caused by an infection such as gonorrhea.