(Disclaimer: This article is for general use only. To protect patient privacy, the information in the following content has been processed) Abstract: After accidentally spraining the left ankle joint at home, a 52-year-old patient felt unbearable pain in the ankle joint with local swelling and limitation of movement, unable to stand and walk. The fracture was repositioned, the pain was relieved, and the ankle joint resumed its activities. The fracture was repositioned, the pain was relieved, and the ankle joint resumed its activities. He was afraid to touch the ground with his left foot. After applying cold compresses, the symptoms did not improve significantly, and the patient could not leave the bed or stand on his own. The pain gradually worsened and affected the sleep at night, and the patient came to our hospital this morning because the symptoms were not significantly relieved. After physical examination, it was found that there was pressure pain on the lateral side of the left ankle joint, and there was obvious local deformity, and a bone rubbing sensation could be palpated. The radiographs showed a fracture of the left external ankle cortex and a displacement of the fracture end. One is conservative treatment, which can promote the healing of the fracture by fixing the fracture in plaster or splint, but because it cannot be moved early, the function of the ankle joint may be affected to a certain extent in the future, which may cause stiffness and chronic pain of the ankle joint; the other is surgical treatment, which can keep the fracture end stable by internal fixation of the titanium plate screw through incision and repositioning, and can move the ankle joint early after surgery to prevent the occurrence of sequelae as much as possible. The other is surgery. During the surgery, the external ankle fracture was found to be oblique and unstable, and the fracture end was finally fixed firmly by internal fixation. Since a tourniquet was used during the surgery, local bleeding was relatively low. The patient started ankle flexion and extension activities on the second postoperative day to accelerate blood circulation and promote the relief of edema and pain symptoms. III. Treatment effect The stability of the fracture end was restored through surgery, and the local deformity, bone rubbing sound and bone rubbing sensation disappeared. Postoperative review radiographs confirmed that the fracture end was stable and the internal fixation was in good position. The patient resumed ankle movement early after surgery, and the swelling and pain symptoms were significantly improved within 1 week after surgery, and the patient’s sleep was significantly improved. The surgical incision was removed 2 weeks after surgery, and the patient needed to come to the hospital for follow-up radiographs at 6 weeks and 12 weeks after surgery to observe the fracture healing. In general, complete healing of the fracture can be achieved in about 3 months. After discharge from the hospital, the patient should continue to perform ankle pump exercises for 30-60 minutes daily, together with straight leg raising exercises to strengthen the lower limb muscles and avoid joint stiffness. Before complete healing, the affected limb should not be weight-bearing and can be assisted with double crutches. Active out-of-bed activities in the non-weight-bearing state of the affected limb can accelerate blood circulation to promote patient recovery. At the same time, nutrition should be increased by eating beef, eggs and other substances to speed up recovery. Patients will have painful swelling symptoms during home rehabilitation, and can apply cold compresses for 30 minutes to reduce the symptoms. It is important to observe the swelling of the lower leg area to prevent the formation of deep vein thrombosis in the lower limbs. Also pay attention to avoid smoking and drinking alcohol, which will have a negative impact on the fracture healing. Personal insight 1, ankle joint inversion sprain is easy to cause external ankle fracture, and in most cases, it is easy to displace, the effect of conservative treatment is not very satisfactory, usually need to use surgery. 2.The diagnosis of external ankle fracture can be confirmed through physical examination. Taking radiographs can confirm the type and location of the fracture, and also determine the degree of displacement of the fracture, and can exclude pathological fracture, so radiographs are necessary examinations. 3. Patients will have pain and anxiety after the occurrence of ankle external ankle fracture. It is necessary to communicate with patients in detail about the diagnosis and treatment of external ankle fracture, so that patients can correctly understand external ankle fracture, thus relieving anxiety, actively cooperating with treatment and resuming daily life as soon as possible.