Eyelid spasm can be divided into two categories, one is physiological and the other is pathological. Eyelid spasm is mostly physiological, often transient or intermittent, with short attack time and weak pulsation, which is usually caused by patients' excessive use of eyes, mental fatigue, mental tension and excessive pressure. This reason is mainly seen in teenagers, and disease-specific blepharospasm tends to become more and more serious over time, especially in middle-aged and elderly people. Once pathological blepharospasm occurs, we should actively treat it.