If the herniated lumbar disc causes leg pain, if the pain is only mild and can be relieved after rest, it is generally not considered serious; if the leg pain is serious and accompanied by weakness of the lower limbs, cauda equina symptoms, etc., it means that the disease is more serious. Generally speaking, leg pain caused by lumbar disc herniation in the elderly is mostly due to degeneration of the lumbar disc, the nucleus pulposus protrudes, leading to irritation or compression of the nerve roots innervating the lower limbs. If the lumbar disc herniation only stimulates the nerve roots, mild pain, numbness and other symptoms of the legs will be relieved after resting or simple treatment, which is not considered to be a serious condition at this time. If the herniated nucleus pulposus severely compresses the nerve root, it may lead to nerve paralysis or loss of function, resulting in abnormal leg pain or even inability to move, or symptoms of the cauda equina, such as impaired urination or defecation, indicating a more serious condition. If the elderly lumbar intervertebral disc herniation appears obvious discomfort, it is recommended to go to the hospital in time to improve the relevant examination, to clarify the severity of the disease, and standardized treatment under the guidance of the doctor, in order to reduce the adverse effects of the disease.