Rehabilitation training methods for lumbar protrusion recurrence are similar to those for the first attack, mainly including lumbar back muscle strength training, core stability training and lumbar spine mobility training. 1. Lumbar back muscle strength training: for patients with lumbar protrusion, after the symptoms are relieved, they need to carry out lumbar back muscle strength training, such as flying swallow exercise, hip bridge exercise, air bicycle exercise, etc. to improve the strength of the muscles, which can prevent lumbar protrusion from recurring. 2. Core stability training: after the lumbar protrusion has been treated, core stability training is needed, such as flatbed support, abdominal curls, etc., to activate the core muscles and improve the stability of the lumbar spine, which can reduce the probability of lumbar protrusion recurrence. 3. Lumbar spine mobility training: patients with lumbar synostosis may produce symptoms of lumbar stiffness, so the later can be exercised through yoga and other ways to improve lumbar spine flexibility and restore the range of lumbar spine activity. It is recommended that patients try not to often bend over and bear weight, as far as possible to reduce the load on the lumbar spine, to prevent the recurrence of the condition of lumbar synostosis. Rehabilitation exercises need to be gradual, and must be carried out under the guidance of a professional doctor, not blindly exercise on their own, so as not to cause physical injury.