Lumbar disc herniation on both sides of the back pain leg numbness knee pain, if it affects the normal life or the emergence of movement disorders, belongs to the serious condition. Lumbar disc herniation is due to degenerative changes in the lumbar intervertebral disc or trauma, long-term lumbar exertion is not appropriate, caused by fibrous ring rupture, nucleus pulposus prolapse compression of the nerve, resulting in lumbar and leg radiating pain in the disease. The appearance of both sides of the waist pain, leg numbness, knee pain is a common symptom of lumbar disc herniation. The severity of the symptoms is determined by the patient’s own feelings. If the pain is unbearable and interferes with daily life such as sleep, the disease tends to be more serious. If the numbness worsens, or even if there are movement disorders, this is also a sign that the condition is more serious. It should be noted that knee pain can also be caused by lesions in the knee itself, and it is necessary to undergo relevant examinations and diagnosis in the hospital to determine whether it is caused by a herniated lumbar disc, and at the same time, to understand the severity of the disease. Regardless of the severity of the disease, patients need to be treated in a timely manner to avoid delays and adverse consequences.