If the calf area is sore and numb, it may be related to the following causes: 1. There may be peripheral nerve lesions. For example, when the onset of lumbar disc herniation, it may produce radioactive pain and cause a series of symptoms such as numbness and weakness. 2, there may be related vascular lesions, if patients due to deep vein thrombosis in the lower extremities, or vascular-related trauma, resulting in poor blood circulation in the lower extremities, may cause cold, purple, numbness in the calves and feet, and feel This may cause coldness, purple, numbness, and soreness in the lower legs and feet. Sometimes patients may also show intermittent claudication. 3, there may be the effect of old injury, if there is a serious staccato soft tissue injury in the calf area, after its recovery, may be left with long-term leg pain, numbness and a series of symptoms. This is due to the damage to the tiny blood vessels and nerves here, which in turn causes the above symptoms.