The difference between lumbar disc bulge and herniation is the different stages of the disease and different clinical manifestations. 1. Different disease stages: Lumbar disc bulging and herniation are both diseases caused by lumbar disc degeneration, which are two different stages. Lumbar disc bulging is the early stage of lumbar disc herniation, if not treated timely, it may develop into lumbar disc herniation. 2. Different clinical manifestations: lumbar disc bulging is mainly manifested as bulging discs, but the internal structures such as the annulus fibrosus and the posterior longitudinal ligament are relatively intact. Clinical manifestations are mild lumbar pain, lumbago, numbness of one or both lower limbs, which can be relieved after rest. On the other hand, lumbar disc herniation is due to the rupture of the annulus fibrosus, the nucleus pulposus protrudes out of the spinal canal, which may compress the nerve root, and the clinical manifestations are lumbago, sciatica, muscle atrophy, and numbness of the lower limbs, etc. If there is any related disease, it is recommended to consult a doctor promptly. If there are related diseases, it is recommended to consult a doctor in time and follow the doctor’s instructions for treatment.