Bunion dorsal pain may be caused by gouty arthritis, bone fracture, onychomycosis, etc. Surgery and the use of medication such as Meloxicam can be performed to relieve the symptoms. 1. Gouty arthritis: high uric acid, eating food containing too much purine can lead to gouty arthritis, which can cause redness, swelling, heat, pain and lower limb edema in the affected area. The use of drugs such as celecoxib can alleviate the pain and swelling symptoms. If the patient develops joint deformity, it can be treated by surgery. 2. Fracture: A fracture of the instep of the big toe can be caused by a direct violent impact on the instep of the big toe or by a violent muscle contraction, which may result in a fracture of the instep of the big toe, which may cause pain, localized swelling, and tenderness. Recovery is usually achieved through repositioning, immobilization, functional training and other treatments. If the symptoms are serious, surgical immobilization is also possible. 3. Inflammation of the nail groove: Inflammation of the nail groove can be caused by secondary infection of the tissues near the nail groove or by extrusion of the fingertips, and the patient may experience redness, swelling, and pain in the nail groove, i.e., at the dorsum of the tip of the big toe. Erythromycin and other medications can be applied externally, and in severe cases, the nail can be partially or completely removed. Patients with bunion dorsal pain need to go to the hospital for a systematic examination before the specific cause of the disease can be clarified and get the appropriate treatment plan.