A fracture of the ankle will definitely cause local swelling to become more pronounced. In the case of local swelling that is more pronounced, it will compress the local veins, which will lead to obstruction of venous return and also cause swelling of the foot. In addition, the local blood circulation disorder will lead to insufficient local blood supply. In the case of insufficient local blood supply, the soft tissues will be swollen due to lack of oxygen, so the feet will also appear swollen. If the swelling of the foot is too obvious, it may be necessary to do surgical treatment, to cut open the part to prevent local necrosis or other problems, and in this case, it is necessary to elevate the affected limb, and in serious cases, it is necessary to go to the hospital to do plantar pump treatment and local incision, and to prevent necrosis of the foot.