Lumbar 5 sacral 1 disc bulge, which is usually observed on CT and MRI, is an imaging diagnosis where the bulge area exceeds 3/4 of the vertebral body area. if there is no clinical symptoms such as low back pain or numbness and weakness in the lower extremities, it is an imaging disc bulge, not a clinical disc bulge disorder. If the lumbar 5 sacral 1 disc compresses a nerve, symptoms of low back pain, radiating hip pain, and numbness, weakness, and sciatica in the lower extremities can occur. If the bulging disc is of the central type and compresses the cauda equina nerve, there may be a disorder of urination and defecation, incontinence of urine and feces, or constipation and other symptoms of diarrhea. Lumbar 5 sacral 1 intervertebral bulge early to conservative treatment, if conservative treatment is not effective, but also consider minimally invasive surgery or incisional surgery treatment, can release the bulging disc on the nerve compression, so that the lower extremities and the symptoms of diarrhea disappear.