Summary of case history,　The patient Zhang, female, 37 years old, visited the hospital on July 4, 2019 due to "no contraception and no pregnancy for 4 years". The patient's spouse had normal reproductive ability and had not been pregnant for 4 years without contraception. She had two test-tube babies in Harbin Red Cross Hospital because of non-implantation failure. Symptoms and signs: The patient had breast distension before menstruation, occasional tingling pain in the left lower abdomen, less menstruation, dark color and blood clots. Impatience, poor memory, fatigue. Light tongue, thin fur, deep and thin pulse.,TCM diagnosis,　Infertility (kidney essence deficiency syndrome).,Western medicine diagnosis,　Endometrial thin infertility.,Therapeutic methods,　The treatment of traditional Chinese medicine is based on the method of tonifying the kidney and regulating Chong, regulating menstruation and assisting pregnancy, and is treated with modified Zishen Tang.,Clinical outcomes,　The patient was successfully pregnant, and the pregnancy was safe and smooth.