Trigeminal neuralgia and facial spasm are neurological diseases with a high incidence. Trigeminal neuralgia is a recurrent, transient, paroxysmal pain in the distribution area of the trigeminal nerve on one side of the face, and facial spasm is an episodic, rhythmic, involuntary twitching of the facial muscles on one side of the face. It has been confirmed that most of the trigeminal neuralgia and facial muscle spasm are caused by the compression of nerve roots by intracranial vessels and increased nerve excitability, and microvascular decompression is designed for this cause, with high cure rate and low recurrence rate. The procedure is completed by making a 4-cm incision in the hairline behind the ear and drilling a small 2-cm diameter bone window.