The big toe hurts when it’s turned upward, which may be caused by a variety of reasons, and the treatment differs for different reasons, as follows: 1, tenosynovitis of the extensor tendon of the toe: manifested as swelling, pain, and restricted activity on the dorsal side of the toe, especially when the pain is heavier during activity, generally treated with conservative treatment, physiotherapy, infrared radiation, hot water foot soaking, moxibustion, hot compresses, etc., to improve 2, other causes: nail fungus, dactylitis or gout, all of which can cause increased pain when moving the toe. In the case of nail fungus, it is usually necessary to go to the hospital for timely anti-infection and pain relief treatment, and sometimes cut row surgery. Patients with gouty arthritis must carry out a controlled diet, drink more water, and prohibit alcohol and smoking. Blood uric acid will fall after improving the diet, so that the pain will be relieved.