Open lumbar spine surgery needs to decide when not to wear lumbar protection according to the lesion, which usually takes 1~3 months. 1. Lumbar disc herniation: if the surgery is minimally invasive, the lumbar protection can be removed in about one month; if the surgery is bone grafting, it is usually necessary to stay in bed for two months and then wear the lumbar protection for one month. 2. Lumbar vertebral fracture: after lumbar spine surgery with incision, repositioning, and internal fixation with nail-rod system, most people need to wear lumbar protection for about six weeks, but if accompanied by osteoporosis and other conditions, they may need to wear it for two to three months. 3. Lumbar spinal stenosis: Patients with open surgery for lumbar spinal stenosis, decompression, repositioning, bone grafting, etc., need to wear lumbar support for four to five weeks after surgery. Patients need to be examined by a doctor before lifting the lumbar support, and patients need to carry out moderate exercise after lifting the lumbar support to avoid muscle atrophy, fatigue and other conditions, which are not conducive to postoperative recovery.