musculoskeletal and connective tissue disorders
Bursitis
Etiology of Bursitis
Bursitis may be caused by the following: Injury Chronic overuse and/or pressure Inflammatory arthritis (eg, Gout , Acute or chronic infection (eg,Staphylococcus aureusin acute infections and mycobacteria in chronic infections) Idiopathic and traumatic causes are by far the most common. Acute bursitis may follow unusual exercise or strain and usually causes bursal effusion. The olecranon and prepatellar bursae are the bursae most often involved when an infection is present. Chronic bursitis may develop after previous attacks of bursitis or repeated trauma. The bursal wall is thickened, with proliferation of its synovial lining; bursal adhesions, villus formation, tags, and milky deposits may develop. 