Acute lumbar sprain injury to the cauda equina nerve can be given medication and rehabilitation training, and surgery if necessary, to promote the recovery of nerve function. 1. Drug treatment: Nutritional and nerve-protecting drugs, including methylcobalamin, vitamin B6, vitamin B1, etc., can be used to repair the damaged cauda equina nerve. 2. Surgery: If the cauda equina is compressed and damaged, it is recommended to perform surgery on lumbar intervertebral disc and lumbar vertebrae as soon as possible, so as to relieve the compression and damage of the cauda equina as soon as possible, so as to minimize the harm of nerve damage and repair the cauda equina. 3. Rehabilitation training: such as lifting the pelvis in supine position, holding the knee and touching the chest, lifting the leg in lateral position, etc., can help improve the symptoms and restore the function of cauda equina. The treatment of cauda equina injury should be based on comprehensive treatment to reduce complications and create conditions for functional recovery and reconstruction. Surgery only restores the caliber of the vertebral canal and creates conditions for nerve recovery, but it cannot directly restore nerve function, and the repair of nerve injury, in addition to its own repair, relies on medication to promote the optimal recovery with postoperative rehabilitation training. If the disease is not optimally recovered within the effective treatment period, the nerve may be ischemic for too long and degenerative necrosis occurs, so the treatment and recovery must be carried out at an early stage. It is recommended that patients with acute lumbar sprains seek medical attention in a timely manner, and under the guidance of a doctor, actively target treatment and choose a suitable treatment and rehabilitation program.