Don’t hang the bar after lumbar spine fusion surgery, especially within 3 months after the surgery, after 3 months, you can gradually increase the amount of exercise, but it is still best not to hang the bar this kind of exercise. Don’t hang the bar within 3 months after lumbar spine fusion surgery. At this stage, you shouldn’t even do bending and some exercises that increase the load on the lumbar region too early, and hanging the bar after the surgery may lead to the pulling out of the nail, which will make the stability of the lumbar vertebrae decrease again, and even require another surgery. The amount of exercise can be gradually increased after 3 months of surgery, but it is still not advisable to do such exercises as hanging the bar, which puts a large load on the lumbar region. Lumbar fusion, also known as spinal fusion, is a surgery that connects or fuses two or more vertebrae in the spine for serious lumbar spine disorders such as lumbar disc herniation, lumbar spinal stenosis, and vertebral body slipping, etc. If lumbar fusion is performed, the spine will be stabilized again. If you have undergone lumbar spinal fusion, please follow the doctor’s instructions for physical exercise, and do not exercise blindly on your own to avoid adverse consequences.