The causes of finger bone pain may be tenosynovitis, gout and rheumatoid arthritis. 1. Tenosynovitis: due to the influence of cold and excessive activities, the tendon sheaths of the fingers are affected by aseptic inflammation, which causes limitation of finger activities, pain when moving the fingers, and sometimes pain in the bones of the fingers. 2. Gout: due to high uric acid in the body, the formation of urate deposits in the joint cavity and other places, finger joint pain can occur. 3. Rheumatoid arthritis: it is a chronic disease of unknown etiology. It is mainly characterized by polyarticular inflammation of the small joints of the hands and feet, and may cause finger bone pain. Finger bone pain may also have other causes, such as trauma, etc., should be timely to the regular hospital, the doctor according to the symptoms, signs and auxiliary examination to determine the specific cause, for the cause of the correct treatment.