Abstract： Trichotillomania is a body-focused repetitive behavior disorder characterized by recurrent pulling,twisting,and rubbing of hair,involving hair across the entire body and affecting the quality of life.The habit reversal training has always been the first-line treatment modality for trichotillomania in modern medicine,while a uniform standard of medication remains absent.Trichotillomania is categorized as a kind of emotional disease in traditional Chinese medicine.The initial step of trichotillomania treatment involves a comprehensive investigation into underlying pathogenic causes,followed by eliminating the root cause,relieving depression,and ultimately employing Chinese herbs.Professor Liu Aimin posits that the root cause of trichotillomania stems from heart and liver,and the treatment should follow the principles of soothing the liver,relieving depression and clearing heart fire.The modified danzhi xiaoyao san exhibits remarkable therapeutic efficacy in the treatment of trichotillomania,offering a viable option for traditional Chinese medicine therapy.