Summary of case history,　The patient, female, 23 years old, unmarried, went to see a doctor on January 12, 2022 due to "2 years of postmenstrual error and more than 2 months of menopause". The patient went to the local hospital for treatment after menstruation for two years, and was diagnosed as "polycystic ovary syndrome". He had been treated with Diane orally for three months, but the menstrual cycle was still irregular after two months of drug withdrawal, so he came to the clinic for treatment. Symptoms and signs: the patient is weak, has backache, has anorexia, has difficulty falling asleep, is easy to wake up, has many dreams, is usually impatient, tends to sulk, is good at breathing too much, is afraid of cold, and has cold hands and feet. The stool is thin and shapeless, once or twice a day, and cannot be completely discharged. The urine is regulated. The tongue is dark red, the fur is thin and white, and the pulse is thin.,TCM diagnosis,　Late menstruation (Liver depression and kidney deficiency).,Western medicine diagnosis,　Polycystic ovary syndrome.,Therapeutic methods,　Traditional Chinese medicine takes tonifying the kidney and soothing the liver, promoting blood circulation and regulating menstruation as the method, and gives the self-prepared traditional Chinese medicine for oral treatment.,Clinical outcomes,　Regular menstruation after treatment.