Ankle sprain, commonly known as “broken foot”, is the most common joint sprain in daily life. For example, if you fall when walking on an uneven road, step on the stairs, or step on a foreign object when jumping up and down, ankle sprains are most likely to cause lateral ligament injury due to weak lateral ligaments and greater inversion of the foot. Most people think that the broken foot does not hurt the bones, rest can be good. So, what is the harm of “broken foot”, is not a few days of rest will be fine? How should we handle it correctly after a “broken foot”? Acute sprain of the ankle just rest for a few days without treatment, the damaged ligaments can not be repaired in a timely manner, which can cause chronic ankle instability, easy to sprain again, the vicious cycle of habitual sprained ankle, resulting in traumatic arthritis, seriously affecting the daily walking and sports functions. Most people have no injury on the surface of the ankle after breaking the foot, but there will be tissue damage inside the ankle joint, such as local blood vessel and capillary rupture, ligament or tendon damage. At this point, if you then shake, twist a twist activity or massage the part , it will further aggravate the internal damage, make the swelling more obvious, not conducive to recovery. The first thing you should do after a sprained ankle is to brake – that is, immediately stop the movement, and observe the injury. After the sprain, if the ankle can still move , and there is no obvious swelling around it, belongs to the mild sprain, can be treated by themselves. Mild injury, usually within two weeks can be recovered, young people are more rapid recovery, often a day or two of rest can run and jump again. Remember the “PRICE” principle, specifically: Protection, Rest, Ice, Compression, Elevation. Protection: Protect the joint by immobilization with ankle brace, patch, etc. It is conservatively recommended to immobilize the joint for 2-3 weeks. Rest: Rest the ankle joint, brake it and stop walking to minimize further injury. Ice: Apply ice within 48 hours of injury, 3-5 times a day for 10-20 minutes or as long as needed depending on the injury. Icing is not just a matter of placing ice on the ankle. The injured ankle should be bandaged with gauze, and then the ice should be wrapped in a soft, waterproof material (such as a plastic bag, rubber gloves, etc.) or a special ice pack to cool down the affected area. Pressurized bandage: Use an elastic bandage to wrap the injured ankle joint and apply appropriate pressure to reduce swelling. Elevation: Elevate the ankle above the heart to promote venous and lymphatic return and reduce swelling. Severe ankle sprains should seek immediate medical attention.