Pain in the joints of the arm may be caused by long-term work, and may also be related to trauma, osteoarthritis, rheumatic diseases and other causes. 1. Long-term work: prolonged use of the arm work, weight-bearing, can lead to arm joint pain, soreness, this situation suggests more rest, massage, can relieve pain. 2. Trauma: When there is a history of trauma to the arm joints, it can be due to dislocation of the joints, the surrounding muscles, ligament damage, strain, which can lead to arm joint pain. 3. Osteoarthritis: also known as degenerative joint disease, mostly related to osteophytes, can appear joint pain, swelling, dysfunction, etc., can also be manifested in the arm joint pain. 4. Rheumatic diseases: such as rheumatoid arthritis, gouty arthritis, etc., will also appear arm joint pain. Patients with arm joint pain may also be caused by other reasons, it is recommended that patients promptly to the regular hospital, under the guidance of specialized doctors for standardized treatment.