The symptoms of soreness in one side of the lower limb are commonly caused by the following: first, caused by injury and strain, such as the nature of the patient’s work determines that one side of the lower limb is heavily loaded or strains and contusions occur in one side of the lower limb during exercise, resulting in soreness. Second, the blood circulation of one lower limb has problems, such as varicose veins, vasculitis or swelling in the lower limb compressing the blood vessels, thus producing hypoxia and ischemia, resulting in soreness and pain. Third, see in the lumbar intervertebral disc herniation, lumbar spinal stenosis and other diseases, resulting in the sciatic nerve root of one lower extremity is stimulated, compression, in the nerve travel area appear sore symptoms, serious cases lead to lower extremity radioactive pain, abnormal sensation.