Facial muscle twitches are due to facial muscle spasms, mainly involuntary contractions and spasms of one eyelid, zygomatic and oral horn muscles. The main reason for this is the crossover of the facial nerve with the intracranial vessels during development. Within a certain period of time, facial nerve injury occurs after the friction between the nerve and blood vessels, causing facial muscle spasm. Treatment can be oral carbamazepine, which is used as an antiepileptic drug and mainly inhibits nerve discharges. Botulinum toxin can be used to relieve facial muscle spasm by injecting a small amount of botulinum toxin for the treatment of facial muscle spasm.