What are the risks and complications of microvascular decompression for trigeminal neuralgia? The main surgical risks and complications include: postoperative cerebrospinal fluid leakage with an incidence of 1C5%, headache and dizziness, neck pain and discomfort, and other symptoms of meningeal irritation with an incidence of 15C17%, hearing loss with an incidence of 1C7%, facial numbness and hypesthesia in some patients, etc. In addition, microvascular decompression has a mortality rate of less than 1% due to intraoperative or postoperative intracranial hemorrhage, various postoperative infections, and anesthesia accidents. The causes include intraoperative or postoperative intracranial hemorrhage, various postoperative infections, and anesthesia accidents.