Half of the face is twitching is considered to be the presence of facial muscle spasm, for facial muscle spasm is due to excessive excitability of the facial nerve on one side, the patient can first be the muscle twitching around the eyelid, with the progress of the disease can appear the twitching of one side of the face. For facial muscle spasm, the patient is usually considered to be suffering from ectopic vascular compression of the brainstem nerves. If the above methods are not able to control the patient’s facial muscle spasm, surgery can be performed if necessary.