Swelling and pain on the surface of the foot from a sprain is not necessarily a fracture. If the local swelling and pain is not particularly pronounced, it may be caused by a ligament injury, where the sprain causes a partial tear of the ligament at the same time. For not a complete rupture, it can be fully recovered by rest, braking, brace fixation, etc. If the injury is more severe and causes ankle instability, surgery is required to repair the ligament. If the foot sprain is gradually aggravated by rest, lower limb elevation, swelling and pain after icing, inability to walk, and local pressure with bone rubbing sensation, it is very likely to be a fracture, which needs to be diagnosed by X-ray, and a minor fracture without displacement can be treated conservatively by giving plaster brace fixation. If the fracture is displaced or dislocated, it needs to be fixed by surgery. Therefore, do not massage or apply heat to the foot after sprain, and do not walk with weight, but go to the hospital for further examination after giving simple fixation.