The causes of pain and distension after minimally invasive surgery for lumbar disc prolapse include disc protrusion, local tissue adhesion and compression of nerves. 1. After minimally invasive surgery to remove the intervertebral disc, if the residual disc herniates again due to inappropriate stooping activities, compressing the lumbar nerve root and causing painful lifting of the innervated lower limbs, it is recommended to undergo lumbar incision surgery to remove the disc completely. 2. Minimally invasive surgery to remove the intervertebral disc, the early postoperative period did not carry out straight leg raising exercise in time, resulting in the lumbar part of the soft tissue adhesion, compression of lumbar nerve root, resulting in edema of the nerve root, the lower limb throbbing pain. It is recommended to give anti-swelling drugs (mannitol) and straight leg raising training. If the result is poor, surgery is needed to strip the nerve and eliminate the adhesions. The recurrence of lower limb cramps after minimally invasive lumbar spine surgery is recommended to be actively consulted and treated under the guidance of a physician.