Summary of case history,　Patient Liao, a 33-year-old female, visited the hospital on October 29, 2021 due to "soreness and weakness in the waist and knees after one month of miscarriage". The patient has a history of two inevitable miscarriages, and there are no significant abnormalities in the chromosomes, semen, and other indicators of both spouses. One month after the current patient's miscarriage, her waist and knees are sore and weak, her hands and feet are hot, her mind is tired, her stomach is fine, her sleep is peaceful at night, her mouth is dry and she likes to drink, and there is no difference between her two stools. The tongue is red, the fur is yellow and thin, and the veins are thin and numerous.,TCM diagnosis,　Recurrent abortion ( kidney yin deficiency Syndrome).,Western medicine diagnosis,　Recurrent abortion; diminished ovarian reserve.,Therapeutic method,　Traditional Chinese medicine treatment is based on tonifying the kidney and filling the essence, nourishing yin and nourishing blood, and is treated with modified He's Nest Nourishing Formula; Western medicine provides vitamin E capsules to improve ovarian function.,Clinical outcomes,　After treatment, the patient successfully became pregnant and is now more than 12 weeks pregnant. Regular prenatal examinations show normal fetal development.