Xiao Cui, who is in the second grade, has been criticized by his teacher recently because he has a bad habit – blinking. When the teacher asked him why he blinked all the time, he couldn’t say exactly. After several severe criticisms, instead of correcting this bad habit, Cui blinked even more, and he blinked more often when he was angry or scared. In desperation, the teacher asked his parents to take Xiao Cui to the eye center, where a careful examination did not reveal any abnormalities. Xiao Cui used some eye drops, but his symptoms were not relieved. In order to help Cui correct this bad habit, his family promptly reminded him every time they saw him blink his eyes. A month later, Xiao Cui’s habit had not been completely corrected, and he was shrugging his shoulders more when he blinked his eyes. Xiao Cui was brought to the hospital again, this time to the pediatric behavior disorder clinic. The doctor’s diagnosis was “transient tic disorder”. According to the doctor, twitching is an involuntary, sudden, rapid, recurring, non-rhythmic movement or vocalization with no apparent purpose, which can occur in any part of the body and is the result of simultaneous contraction of one or several groups of muscles. “The child’s life should be reasonably arranged to avoid triggering or aggravating factors such as excessive excitement, stress, exertion, cold and fever; reduce the burden of study, extend the sleep time appropriately and continue school. With the joint efforts of his family and teachers, Xiao Cui finally quit this bad habit after 2 months.