Summary of case history,　patient Zhang, female, 18 years old, sought medical attention on September 27, 2021 due to "over 5 years of sparse menstruation". After menarche at the age of 13, the menstrual cycle is sparse, with a period of 30-150 days. The menstrual volume is small, and the menstrual period is 3-4 days. He has taken treatment such as Youshiming and progesterone, and denies any sexual history. Symptoms and signs: The patient is obese, usually afraid of hot sweating, prone to acne on the face, hairy lips, irritable and irritable, with menstrual breast pain, accompanied by low back pain, dreamy nights, numbness, sticky stools, and yellowish urine. The tongue is red, the fur is yellow and greasy, and the pulse strings are numbered.,TCM diagnosis,　delayed menorrhea(liver-depression and spleen-deficiency).,Western medicine diagnosis,　polycystic ovary syndrome.,Therapeutic methods,　traditional Chinese medicine treatment is based on the principles of soothing the liver, strengthening the spleen, clearing heat and promoting dampness, and is treated with Danzhi Xiaoyao Powder and Yueju Wan; western medicine treatment is given orally with metformin.,Clinical outcomes,　the patient's menstrual cycle has returned to normal, and symptoms such as breast swelling, pain, and acne have disappeared. Hormonal and endocrine indicators have improved.