Road walking more leg belly soreness mostly refers to the back of the calf soreness common causes are sports injuries, varicose veins in the lower extremities, lumbar disc herniation and so on. In addition may also be physiological reasons. 1. Sports injuries: Excessive exercise leads to lactic acid buildup or long walks lead to muscle strain can lead to calf soreness and pain. It is mostly a physiological phenomenon, so you can rest properly and reduce the activities. 2. Lower extremity varicose veins: it can be caused by long time standing, obesity and other factors, resulting in venous valve closure insufficiency and increased venous pressure in the lower extremities. Common symptoms include lower extremity discomfort, pain, and signs such as bulging of superficial veins in the lower extremities. Common treatments include wearing compression stockings, injection of sclerosing agents, such as sodium cod liver oil acid, sodium oleate-ethanol, etc., and surgical treatment. 3. Lumbar intervertebral disc herniation: caused by overwork, long-term physical labor and other triggers, resulting in lumbar intervertebral disc herniation, compression of the nerve root triggered. Common symptoms include lumbar pain and lower extremity numbness, pain and other symptoms. You can take proper rest, oral non-steroidal anti-inflammatory drugs, such as diclofenac sodium, etc., and surgery if the effect of conservative treatment is poor. There are many reasons for the soreness of the back of the calf, and it may also be related to spinal stenosis, degenerative changes in the knee joint and other diseases. If the symptoms continue to be unrelieved after excluding the physiological reasons, it is recommended to consult a doctor in time to clarify the cause of the disease and carry out targeted treatment.