There are often physiological and pathological causes of thigh pain. The physiological cause is usually the accumulation of lactic acid after excessive activity, and the pathological cause is usually a herniated lumbar disc. If the leg pain is caused by too long and excessive exercise, you can properly massage to relieve the symptoms of lactic acid buildup. In addition, exercise time and exercise volume should not be too large to prevent the recurrence of similar conditions. If the lumbar disc herniation is serious, it will compress the nerves and cause numbness or pain in the lower limbs, and if it is serious, it will compress the surrounding blood vessels, resulting in insufficient blood flow in the thighs and lack of blood flow, which can cause pain. If such a situation occurs, the treatment of herniated lumbar disc is the first priority. In addition, the symptoms of pain at the root of the thigh can be treated by fixing the lumbar region, followed by conservative treatment of the herniated lumbar disc, which can be treated by pulling, acupuncture and massage, and the pain can be reduced or disappeared after the disc is reset. If the pain in the leg is heavy, you can assist with slow-release type of painkillers. If there is nerve damage, nerve-nourishing drugs, such as methylcobalamin, can be used.