Foot fracture five months still swollen common causes are serious initial injury, lower extremity vascular disease, traumatic arthritis, etc., should be timely consultation to identify the cause of the disease. 1. Initial injury is more serious: such as comminuted fracture with severe soft tissue contusion, poor blood circulation at the fracture site, the fracture repair will be slow, and soft tissue mechanization of the ankle, the appearance of swelling, may be more than half a year. 2. Lower extremity vascular disease: long-term immobilization after fracture, the patient does not go down to the ground activities, may cause lower extremity vascular disease, such as varicose veins of the lower extremity, venous thrombosis, lower extremity venous valve dysfunction, etc., will lead to venous return obstruction, the distal end of the limb will be swollen. 3. Traumatic arthritis: a common complication after fracture trauma, can cause persistent swelling of the foot. Foot fracture five months also swollen there may be other reasons, it is recommended to consult a doctor in a timely manner, ask the doctor to clarify the specific causes, if necessary, to carry out the appropriate treatment.