Calf muscle swelling after a back fracture may be caused by soft tissue injury, circulatory obstruction, etc. If the symptoms of calf muscle swelling persist, it is recommended to seek medical treatment in time. 1. Soft tissue injury: waist fracture is often caused by trauma and other reasons, which may also cause soft tissue injury in the leg, thus causing swelling of the calf. 2. Circulation obstruction: after the waist fracture, often need conservative treatment or surgical treatment, through the above treatment need to be braked for a period of time, the lower limbs for a long time inactivity, easy to cause the local blood circulation is not good, may cause the swelling of the calf. After the waist fracture calf muscle swelling, it is recommended to go to the hospital in time to identify the cause of the disease, the doctor targeted treatment.