This question is not very clear whether it is meant to ask about the direction of the lumbar disc protrusion in the case of lumbar disc herniation or the direction of the scoliosis bulge in the case of scoliosis. I will answer its two questions separately. Lumbar disc herniation is due to its anatomical structure, which causes it to protrude only to the left rear and right rear and rear, compressing the corresponding nerve roots and cauda equina and other clinical symptoms caused by the corresponding called lumbar disc herniation. Scoliosis is a type of spinal deformity. When a person’s spine protrudes to the sides in an orthopedic position, it is clinically known as scoliosis, also known as scoliosis of the spine. Scoliosis can be corrected before reconstruction by orthopedic bracing to achieve clinical results. After adulthood can not be corrected by their own treatment can only be corrected through surgical orthopedic treatment, clinically there is no lumbar protrusion and scoliosis said.