Tic disorder means having uncontrollable muscle twitches, which can be in the muscles of the eyes, the face, the corners of the mouth, the neck, the upper limbs, and the abdomen. These may include blinking, squeezing of the eyes, nose wrinkling, nose snorting, teeth exposure, mouth twitching, strange facial expressions, neck stretching, head nodding and head shaking, shoulder shrugging and abdominal tucking. Other children may exhibit vocal twitches in the throat: “hum, hum”, “hmm, hmm”, “cough, cough”, or throat clearing sounds, and sometimes a sudden outburst of profanity. Some of them have repeated coughs. Yixuan is 7 years old and in the first grade. Shortly after school started, she developed a cough that was not serious, but a single cough, sometimes several times in a row. The parents took Yixuan to the hospital several times, but at first the doctor said it was an upper respiratory tract infection and took some cold medicine that didn’t work, and later said it was allergic and added anti-allergy medicine that still didn’t work. 2 months have passed and Yixuan is still coughing non-stop, affecting his classmates in class and homework at home, and not concentrating on his studies. After the parents told the doctor about Yixuan’s symptoms, the doctor considered that Yixuan was suffering from vocal tic disorder, which is a form of childhood tic disorder. After more than a month of anti-tic medication, Yixuan’s cough was completely healed. There are various causes of tic disorder: genetic factors, neurobiochemical factors in the brain, organic changes in brain development, psychological factors, and sometimes triggered by discomfort in certain parts of the body such as conjunctivitis and rhinitis of the eyes. The age of onset of Tourette’s syndrome is 2-15 years old, and doctors classify it into three clinical types: transient tics, chronic motor or vocal tics, and combined vocal and multi-motor tics. It is important to go to a specialist for treatment of Tourette’s syndrome because it is mostly a chronic condition that needs to be treated together with a doctor. Parents should first recognize the characteristics of tic disorder, treat it correctly and build confidence in overcoming it, do not pay too much attention to the child’s tic performance, and do not accuse, criticize or imitate it. The child’s diet should be reasonable, and he or she should not drink excitatory drinks such as caffeine. If medication is needed, it should be taken according to the doctor’s requirements, and should not be stopped or taken indiscriminately. The dosage and duration of medication varies from person to person, generally ranging from 3 months to a year.