Calf root pain often has the following conditions: 1, popliteal cysts caused by local compression symptoms, larger popliteal cysts can compress the popliteal nerve, popliteal artery, popliteal vein, resulting in local blood reflux obstruction, lower limb ischemia, hypoxia, caused by the root of the calf pain. It is recommended that patients have popliteal cysts surgically removed, which can improve the symptoms of compression and pain.2. Popliteal vein thrombosis, lower extremity venous thrombosis, can cause significant swelling of the lower extremities. At this time, active anticoagulation therapy, if necessary, for the early new thrombus to take endovascular thrombolysis and thrombus removal, can achieve better therapeutic results.3, calf root fracture after trauma, can also cause severe pain in the limb, accompanied by the formation of local hematoma. Some patients need surgical incision and internal fixation, as well as hematoma removal treatment.