Tendinitis occurs from inflammation of the lining around the tendon. The tendon eventually becomes inflamed as well. The condition can cause pain and discomfort in the elbow, wrist, finger, knee, thigh and Achilles tendon. Sometimes tendinitis has nicknames such as "tennis elbow" or "jumper's knee." The disorder can be treated with heating pads or cold packs, anti-inflammatory medication or physical therapy. In some cases, surgery can remove the inflamed tissue.
Repetitive Movements
Repetitive movements can aggravate the tendon and eventually bring on inflammation. People in certain jobs that require repetitive movements or awkward positions may be at risk. Certain sports involve repetitive movements that can cause tendinitis in various areas of the body over time. Some sports may include tennis, basketball, baseball, bowling, golf, swimming and running. Poor stretching or conditioning before sports or exercise may cause tendinitis, according to the Cleveland Clinic.
Stresses
Abnormalities in the bone or joint may put pressure on the soft tissue, leading to inflammation. Arthritis may put stresses on tendons in the areas that are affected. Arthritis may cause bony growth in certain spots to aggravate the tendon and cause tendinitis.
Injuries
Injuries can lead to tendinitis during sports but also during regular activity. Direct blows to the shoulder area or falling on the arm may lead to tendinitis in the shoulder.
Incorrect Posture
A person's posture at work or at home can put increased pressure on tendons in the hip, knee or shoulder, depending on the way the person is used to sitting. Poor posture can cause unnecessary stress on many parts of the body, including the tendon.
Foot Problems
Overworking the heel during a sport or activity, according to the Physicians' Desktop Reference, can cause Achilles tendinitis. Forceful exertion can put pressure on the tendon. Running or exercising on hard surfaces can be damaging to the heel. Shoes that don't fit properly or are worn out can affect heel support. Tight shoes can rub against the heel and irritate the Achilles tendon.
Increased Risks
People have a greater chance of getting tendinitis as they age because the tendons become stiffer and less flexible. The tendon can be injured more easily. People with rheumatoid arthritis, gout, diabetes and thyroid disorders are also at increased risk of developing tendinitis.
