Twitching of the lower eyelid of the left eye may be caused by excessive mental tension, stress, or lack of sleep. Usually, the patient’s symptoms last for a short period of time and may be relieved after relaxing, reducing stress, and improving sleep, or it may be caused by anxiety and fire. In addition, it may be a kind of idiopathic facial muscle spasm. Patients with this disease mainly manifest facial muscle twitching and may also have eyelid twitching, which may be a primary disease or a sequelae left behind by incomplete recovery after treatment of idiopathic facial nerve palsy. Therefore, when idiopathic facial nerve palsy occurs, it must be treated promptly and correctly, and most of them can be cured clinically, but some of them may have certain sequelae.