Ankle is the ankle area, ankle swelling and pain considerations may be due to trauma, gout, synovitis, rheumatoid arthritis. 1. Trauma: If the ankle is stimulated by trauma in life, such as foot sprain, collision and so on, resulting in soft tissue damage of the ankle, it will cause the ankle to appear swollen and painful symptoms. 2. Gout: gout is due to high blood uric acid levels in the patient’s body, resulting in uric acid crystals deposited in the synovial membrane of the joints, thus causing lesions, mainly manifested as joints, red, swollen, painful, hot and other symptoms, so ankle swelling and pain may also be caused by gout. 3. Synovitis: synovitis is a relatively common disease, mainly due to infection, trauma or gout caused by the patient’s main symptoms for the swelling and pain, may also be accompanied by fever, limited joint activity, so the ankle swelling and pain may also be caused by synovitis. 4. Rheumatoid arthritis: rheumatoid arthritis is mainly associated with autoimmune, genetic, infections and smoking and other factors, its pathological basis is synovial inflammation, the common symptom manifested in the joints of the limbs, so the ankle swelling and pain may also be rheumatoid arthritis. Because of the causes of ankle swelling and pain more causes, including varicose veins and arterial embolism and other diseases, when the patient appears related to the discomfort symptoms, it is recommended to go to the hospital in a timely manner to check the diagnosis, as soon as possible to clarify the cause of the disease to take targeted therapeutic measures, to avoid misunderstanding of the condition caused by the aggravation of the symptoms.