A foot sprain may result in a fracture or a soft tissue injury. If the local swelling is obvious, especially if it affects normal weight-bearing walking, the possibility of fracture is higher. You can improve the X-ray examination of the foot in time to understand whether there is any obvious abnormality in the bone, and some bone fractures need CT and 3D reconstruction examination if necessary to facilitate the judgment. If there is only slight pain and swelling, which does not affect the normal walking, the probability of fracture is relatively small, if there is a fracture but the position is good, you can choose to fix the cast for 4-6 weeks of conservative treatment, if the fracture is obviously displaced, you need to consider surgery and internal fixation treatment. For soft tissue injury local hot water bubble, spray swelling and pain aerosol to activate blood circulation and remove blood stasis treatment, for soft tissue injury 1-2 weeks can be recovered, while combined fracture need about 3 months.