Tendinitis of the arm is caused by an inflammation of one of the tendons located in this part of the body. This condition most commonly affects the brachial
biceps muscle on the anterior aspect of the arm, causing pain in the upper part of the arm near the shoulder. This type of tendinitis can be cause by repetitive movement, trauma, excessive movement causing tendon fatigue, and so on. Tendinitis of the brachial bicep is especially common in manual workers or the elderly, whose tendons suffer microscopic tears over the course of their life induced by over use. In these cases it is advised to rest the arm, and analgesic drugs can be prescribed.