The foot neck is not broken, but still has pain, the following reasons are common: First, acute synovitis: young patients who do not pay attention to the warmth of the ankle joint, which can easily lead to cold in the ankle joint, the patient can show acute synovitis, there will be pain, swelling and limited activities of the ankle joint, after local heat application, rest and braking, the clinical symptoms can be relieved. Secondly, degenerative changes of the ankle joint: elderly patients are prone to it, which can cause inflammation of the ankle joint. Patients will have cartilage damage of the ankle joint, so it can lead to pain, swelling and limited activities of the ankle joint, and in serious cases, it can also lead to deformity of the ankle joint. Taking MRI and X-ray will reveal the extent of lesions in the ankle joint. Through early diagnosis and early treatment, clinical symptoms can be significantly relieved. Patients should usually pay attention to protect the ankle joint and prevent the above diseases to prevent painful symptoms in the ankle joint.