Swelling of the fingers of both hands to consider rheumatoid arthritis, trauma, gout, infection and other causes. 1. Rheumatoid arthritis: symmetrical swelling of the joints, obvious pain, restricted movement, morning stiffness, rheumatism test can be a clear diagnosis. 2. Trauma: If the finger is swollen with bruises, consider the trauma caused by the need to take a clear picture of any fracture. 3. Gout: mostly caused by eating more purine food, sudden swelling, pain, test uric acid can be a clear diagnosis. 4. Infection: bacterial infection causing purulent dactylitis, mainly for the fingertip swelling, pain, local redness. Swelling of the fingertips of both hands if there is pain need to go to the hospital for further examination, to clarify the specific causes of the disease, for the cause of the treatment.