The bending time after lumbar spine surgery varies from person to person, as follows: 1. Minimally invasive lumbar spine surgery: less damage to the lumbar spine tissue and bone structure, less loss of lumbar spine function, bending activities can be performed 1 month after surgery; 2. Open lumbar spine surgery: lumbar spine internal fixation surgery is the main procedure, due to the long healing time of lumbar spine fracture and fusion surgery, so it is recommended that patients need to wear a brace for at least 3 months after surgery, or even longer before bending activities, so as to avoid premature bending resulting in the dislodgement and failure of internal fixation.