Lumbar disc decompression and fusion can gradually get out of bed one month after the operation, and can generally resume normal mobility function three months after the operation, and there are also individual differences. Lumbar disc decompression and fusion refers to lumbar disc herniation surgery, which removes the nucleus pulposus and then fuses the two adjacent cones into a whole by means of immobilizers, so as to increase their bearing capacity, fix the spine and reduce the mutual activities between the lumbar vertebrae. Post-operative functional exercises can provide patients with relief from the symptoms of lumbar disc herniation. After lumbar intervertebral disc decompression and fusion, it is necessary to pay attention to sufficient bed rest and avoid premature strenuous activities. Within one month after the operation, the patient should mainly rest in bed and try not to go down to the ground; after one month, the patient can wear a belt and try to walk slowly down to the ground with the help of family members, but he should not bend down or lift heavy objects; three months after the operation, the patient can gradually resume normal activities and have regular follow-up examinations. After lumbar disc decompression and fusion surgery, it is recommended to carry out rehabilitation exercises under the guidance of professional doctors and regular review.