Tendinitis is a common injury that occurs to tendons, typically due to repetitive action, such as raking or cleaning. The tendon is a thick cord-like structure that attaches bones to muscles. When a repetitive action strains that tendon, it becomes inflamed and irritated, causing pain and discomfort. Other causes for tendonitis include arthritis, gout, and adverse reactions to certain types of medicine.
Tendinitis is the cause for more than half of Workman’s Compensation complaints, representing 56% of claims. The type of pain associated with tendonitis includes tenderness at the point of injury, numbness, tingling, and stiffness. Sometimes the joint will swell and remain sore long after the injury has healed.
Tendinitis isn’t just work or exercise-related, as tendons tend to lose elasticity with age. Although any tendon in the body can become inflamed and sore, tendinitis mostly affects the shoulders, heels, elbows, and wrists. The inflammation can even cause an infection within the tendon sheath (tissues).