Lumbar disc bulge compression nerve back pain and leg pain and can not relieve urination and defecation, may be due to lumbar disc herniation tissue compression to the spinal nerve or cauda equina caused by clinical symptoms. Lumbar disc herniation is mostly related to degenerative diseases, trauma, chronic strain, female pregnancy, heredity and other factors. According to the degree of herniation, it is categorized as bulging type, protruding type, prolapsing type, free type, etc. It can cause a series of clinical symptoms due to the compression of nerve root or cauda equina. When a herniated lumbar disc compresses the cauda equina, it can cause damage to the cauda equina, resulting in numbness, pain, and decreased skin sensation in the saddle area (i.e. perineal area). Since the cauda equina is an important nerve that innervates urinary and fecal organs, symptoms such as urinary and fecal incontinence, urinary retention, or constipation may also occur. If the bulging disc compresses the nerves and causes back pain and leg pain and inability to urinate and defecate, it is recommended that the patient should consult a doctor for timely examination and symptomatic treatment under the doctor’s guidance, and according to the needs of the condition, decide whether or not to take surgical measures such as nucleus pulposus removal.