Bursitis applies to the same process in the membranes which lubricate the joints. Pain from these structures may occur following extreme or repetitive trauma or over exercise. The tendons of virtually any muscle group can be affected, though the most common sites include the shoulder, wrist, heel, calf, and hip. Pain may be spontaneous, or worsened with movement or pressure. Mild swelling may occur, and sometimes there is a rubbing sensation associated with loss of normal tissue lubricating fluid.
Calcium deposits are sometimes present in the tendon and sheath.
In the case of repeated episodes, continued trauma, or other injury, chronic pain may occur. Pain sudden in onset, without obvious trauma, to exclude the possibility of underlying disease, such as Lyme disease, high cholesterol, or other illness. Pain associated with severe trauma, to eliminate the possibility of fracture and injury to nerves, vessels, and tendons. Shooting of pain along the arm or leg. Rapid spread of pain.