A sprained foot does not necessarily result in a fracture. A sprained ankle usually results in swelling of the dorsum of the foot because there are many ankle muscles and ligaments that stop at the dorsum of the foot, and the soft tissues of the dorsum of the foot are relatively lax. Once the tissue is edematous, the swelling will be very pronounced, but this does not necessarily mean that there is a fracture; a simple soft tissue injury can result in very pronounced swelling of the dorsum of the foot. If you want to determine whether a fracture exists, you first need to estimate the size of the violence to initially determine whether it is likely to cause a fracture, and then look at the patient’s specific situation, such as the presence of osteoporosis and abnormal bone metabolism, to see if a fracture may exist, and ultimately you need to take an x-ray to determine this.