Effects of Lactobacillus Plantarum PS128 in Patients With Tourette's Syndrome

Inclusion Criteria: * Age 4-18 years old * Tourette's disease is diagnosed * Make sure it is not caused by medication or other diseases * Cause major interference in social interaction, study or work * The healthy control group is not diagnosed with Tourette's disease, and is judged by PI Exclusion Criteria: * Have taken antibiotics within a month or are receiving antibiotic treatment * Used probiotic products in powder, capsule or tablet form within two weeks (except yogurt, yogurt, Yakult and other related foods) * Patients who have undergone hepatobiliary gastrointestinal surgery (except for colorectal polypectomy and appendectomy) * Inflammatory bowel disease, such as Crohn's disease or ulcerative colitis * Those with a history of cancer * Those who are allergic to lactic acid bacteria products * Those who are not suitable to participate judged by PI