Tendinitis, or tendonitis, is an irritation of the tendon that causes it to swell and become inflamed. The condition is considered an overuse injury as it develops from repetitive strain of the affected tendon. Pain and soreness are felt around the joint nearest to where the tendon attaches to the bone and can be either acute ( short-term) or chronic (long-term).
There are several types of tendinitis, usually named for sports and the area of the body where it often develops, for example:
- Runner’s/Jumper’s knee
- Swimmer’s shoulder
- Golfer’s elbow
- Pitcher’s shoulder
- Tennis elbow
Tendonitis is fairly common among athletes and in specific occupations and hobbies where repetitive motions are frequent.