The risks of intervertebral foraminoscopy are poor surgical results, postoperative recurrence, nerve injury, hematoma, etc. 1. Poor surgical effect: Incomplete decompression during surgery, central giant disc herniation or lateral fossa stenosis, etc., leading to poor surgical effect. 2. Postoperative recurrence: mainly related to the instability of lumbar intervertebral disc, getting up or bending over after surgery, which leads to recurrence in the short term after surgery. 3. Nerve damage: During the surgery, the nerve root or dorsal root ganglion is damaged. Patients may have obvious nerve pain. 4. Hematoma: During the surgical puncture, the blood vessels are accidentally damaged, resulting in hematoma after surgery. Intervertebral foraminoscopy is a kind of instrument taken for minimally invasive surgery for treating herniated discs, with the advantages of small incision, fast recovery and less bleeding, but as long as it is a surgery, there will be some risks. If you experience any abnormal or uncomfortable symptoms after intervertebral foramenoscopy surgery, you should go to the hospital for a follow-up appointment.