Swelling of the ankle and instep: 1. may be caused by gout; 2. may be a clinical symptom due to poor blood circulation in the lower limbs; 3. may be caused by soft tissue injury to the ankle or instep. Therefore, if swelling of the ankle and dorsum of the foot occurs, the patient should rest in bed, elevate the affected limb and avoid strenuous activities. If the symptoms are not relieved within a short period of time, it is necessary to go to a regular hospital in a timely manner to improve the local ultrasound and X-ray examination and choose a reasonable treatment method after the cause is clear. If it is caused by gout, medication for gout management should be given. If it is caused by injury, topical treatment with blood circulation, anti-inflammatory and analgesic drugs can be used after 48 hours to help reduce swelling.