It’s not very effective to try to treat a herniated lumbar disc with a single bar, the effect may be some, but not too good. The so-called use of the bar to treat lumbar disc herniation is nothing more than the suspension of the bar, after the suspension of the lumbar spine is not compressed by gravity, so the lumbar disc herniation will naturally be relieved, and even through the distal limb traction, the lumbar disc herniation can be retracted. But this effect is relatively weak and lasts for a very short time, because even a well-trained young man can hang a bar for no more than 100 seconds at a time. The traction time is too short for the treatment of lumbar disc herniation. It is better to do three-dimensional computerized traction of the lumbar spine, which can be continuous and more effective.