Swelling on the top of the foot so painful that you can’t walk is usually caused by ankle sprains, gouty arthritis, bone tuberculosis and other diseases, different diseases, different treatments, you can follow the doctor’s instructions to take general, medication, surgery and other ways to treat the cause of the problem. 1. Ankle sprains: usually occurring after sports, after ankle sprains, the patient’s foot surface will be swollen, ecchymosis, and in severe cases, unable to walk on their own. Activities should be stopped and the affected limb should be elevated appropriately, and ice packs should be applied locally; painkillers such as ibuprofen can also be taken orally to reduce pain, and surgical repair can be carried out in case of combined ligament and tendon rupture. 2. Gouty arthritis: it occurs in the first metatarsophalangeal joints, the top of the foot, the ankle joints, etc. The affected area can be swollen, hot, painful and other discomforts, and in severe cases, it can also affect walking. During acute attacks, colchicine, indomethacin, prednisone, etc. can be used as prescribed by the doctor to improve the discomfort. When the symptoms are relieved, drugs such as allopurinol, febuxostat, probenecid, etc. can be applied to promote excretion of uric acid and inhibit the production of uric acid. If necessary, surgical treatment such as lesion removal can also be considered. 3. Bone tuberculosis: it can also cause swelling on the surface of the foot, and the patient may be afraid to walk due to severe pain, and may be accompanied by low fever in the afternoon, fatigue and other symptoms. Anti-tuberculosis treatment, such as isoniazid, rifampicin, streptomycin, pyrazinamide, etc., can be prescribed by the doctor, and if necessary, combined with surgery to remove the lesions. In addition, there are many other causes can cause the top of the foot swollen pain can not walk, it is recommended to go to the hospital in a timely manner to identify the cause of the disease, and then receive treatment as soon as possible. The use of the above drugs need to follow the doctor’s instructions.