There are two types of foot sprains, one with bone damage and the other without fracture damage. If there is simply a fracture injury, this condition requires cast immobilization and possibly even surgery, which is a relatively long period of time. If it is simply a cast, the cast fixation is about 4-6 weeks. In the case of surgical treatment, the injury repair will take about three months. For non-fracture trauma, it usually takes 2-3 weeks of recuperation. If the swelling does not subside after 2-3 weeks and the skin bruising still does not improve, it is best to go to the hospital for further MRI examination in this case to clarify whether there is any damage to the ankle joint and ligaments, because these ligaments are very important for the stability of the ankle joint, and if they are not treated well, the joint inflammation will occur if the foot is easily broken frequently later, such as traumatic arthritis. In this case, the patient should be reviewed regularly and be instructed by a specialist doctor on how to perform functional exercises during the recuperation period, including guided weight-bearing walks after complete weight-bearing on the ground.