Swelling and pain in the middle finger of patients can have the following reasons: 1, arthritis: osteoarthritis can lead to swelling and pain in the finger joints, mostly due to degeneration, commonly found in elderly women. 2, gout: gout can lead to swelling and pain in the finger joints, which can be accompanied by redness of the skin, elevated skin temperature, to be diagnosed by blood uric acid, early treatment with uric acid-lowering medication. 3, tenosynovitis: during an acute attack of tenosynovitis, there can be symptoms of swelling and pain in the palm joints of the middle finger, which can be accompanied by morning stiffness. Tenosynovitis acute attack, there can be symptoms of joint swelling and pain on the palm side of the middle finger, which can be accompanied by morning stiffness, early physical examination, combined with the patient’s life history, work history for diagnosis, early physiotherapy, closed treatment. Swelling and pain in the middle finger of the patient, according to different causes, give active treatment, in order to remove the cause of the disease, so that the swelling and pain symptoms to reduce, disappear.