Herniated lumbar disc caused by leg numbness how long can be good can not be generalized, generally timely treatment 2 ~ 4 weeks will gradually ease, if the condition is serious may need a longer period of time will be relieved. Lumbar disc herniation is mainly due to degenerative changes in the lumbar intervertebral disc, the intervertebral disc fibrous ring rupture, the nucleus pulposus tissue protrudes from the rupture place, leading to the adjacent spinal nerve roots suffer from irritation or compression, resulting in lumbar pain, lower limb numbness, pain and a series of clinical symptoms. The treatment of lumbar disc herniation is divided into conservative treatment and surgical treatment. Conservative treatment includes hot compresses, massage, ultra-short wave and other physical therapy, non-steroidal anti-inflammatory and analgesic drugs, lumbar traction therapy, etc., in order to alleviate the pressure on the nerve roots, and the symptoms of numbness in the legs are usually relieved gradually in about 2~4 weeks. For patients with more serious lumbar disc herniation and more severe nerve root compression symptoms, the time for leg numbness relief will be longer, and some patients may need to take surgical treatment, such as spinal endoscopic nucleus pulposus removal surgery, etc., after which the symptoms of leg numbness and lumbar pain will be relieved. Leg numbness caused by lumbar disc herniation should be timely to the hospital, with the doctor to take standardized treatment.