Tendonitis refers to the tendon inflammation. Body tendons connect the muscles to the bones, facilitating smooth sliding motion. But due to overuse and other reasons, some tendons are prone to inflammation.

Tendonitis is often caused by overuse, especially in the age range from 40 to 60. Some tendons have poor blood supply - this often leads to tissue damage and slow healing. Tendonitis symptoms often include: discomfort, pain or swelling.

Tendonitis often includes the following types: patellar tendonitis (kneecap), wrist tendonitis, achilles tendonitis (heel), rotator cuff tendonitis, elbow tendonitis (also called lateral epicondylitis).