Ankle sprains are very common in life and can occur at any age, but they are more common in adolescents and sports people. Sometimes women are prone to sprains when wearing high heels or walking unsteadily, especially when the road surface is uneven. After ankle sprain, local pain, pressure pain, swelling, petechiae, limited joint movement and even dysfunction can occur. Different ligament injuries or fractures can be caused by different factors of injury, external force, position of the affected limb at the time of injury and mechanism of injury. Generally speaking, ligament injuries are more common. Most patients with mild ankle sprain ligament injuries can heal relatively well with timely and reasonable treatment during the acute phase, but surgery may be required if the tear is severe. Some patients can also develop chronic ankle instability. In case of fracture, conservative or surgical treatment needs to be chosen according to the patient’s specific situation, fracture type, degree of injury and complications. Therefore, once an ankle sprain occurs, the patient should seek medical examination as soon as possible to clarify the condition and, depending on the situation, X-ray and, if necessary, CT or MRI examinations should be performed, and the sprain should not be blindly considered a minor problem and ignored. In general, the usual treatment for a simple ankle sprain with a milder injury is as follows: 1. Protect the sprain. When there is an ankle sprain, the first thing you should do is to protect the affected area well to avoid secondary injuries. 2. Apply cold and hot compresses. Ankle sprains are often accompanied by joint enlargement and bruising. Within 24 hours after the sprain, cold compresses should be applied to shrink the broken capillaries and reduce local congestion, while reducing pain, but the operation should be reasonable and avoid low-temperature frostbite. 24-48 hours can reduce the frequency of cold compresses. Wait until 48-72 hours and then apply warm compresses (if necessary, under the guidance of a doctor) to dissipate the bruising around the sprain. 3. Elevate the affected limb and apply brakes. After ankle sprain, the affected limb should be elevated and kept as high as possible to accelerate the circulation of venous blood and lymphatic fluid, so as to eliminate swelling. Avoid prolonged activities on the ground, especially avoid walking with weight on the affected limb to avoid aggravating the condition. Braking can be done with a cast or brace, and the ankle joint is usually fixed in a neutral position. In general, swelling can be relieved or reduced after 2-3 weeks of acute sprain, but it does not mean that the injury is completely recovered. When the sprain is gradually recovered, gradual rehabilitation training should be carried out under the guidance of a doctor.