Microvascula decompression (MVD) refers to the surgical microscopic removal of blood vessels that are abnormally located in the roots of cranial nerves such as the trigeminal nerve and facial nerve and are causing pressure on the nerves, thereby relieving the pressure on the roots of cranial nerves and improving clinical symptoms. In 1975, Jannetta was the first to report the use of microvascular decompression to treat trigeminal neuralgia and facial muscle spasm, and obtained satisfactory results. MVD has been accepted by most neurosurgeons because of its minimally invasive, high safety, significant effect, low recurrence rate and complications, especially because it can completely preserve the function of blood vessels and nerves, and has become the first choice for trigeminal neuralgia and facial spasm for which drug treatment is ineffective. The number of surgical cases and treatment effects are among the leading ones in China.