A sprain while walking after heel fracture surgery may not be serious if the symptoms are mild and have no effect on walking. If the sprain prevents you from standing or walking, the situation is usually more serious and requires a thorough examination to determine the condition. After heel fracture surgery, you twisted your heel walking. If the symptoms are mild at the time and do not interfere with walking function, pain, etc., then it may not be too serious. If the damage makes it difficult to stand and walk or if there is a noticeable deformity, then there may be a re-fracture or other injury and the situation is more serious. However, in order to determine the severity of the injury, you need to go to the hospital for an X-ray or CT scan to check the condition of the bone, and an MRI to check the condition of the soft tissues and ligaments. After a clear diagnosis, follow the doctor’s instructions in time to avoid delays in treatment.