Generally not easy to get pregnant in Chinese medicine theory, most of the people are kidney deficiency constitution, the human body is divided into yin and yang, kidney deficiency is divided into kidney yin deficiency and kidney yang deficiency. Both of these two constitutions are detrimental to health. Kidney deficiency is mainly present in the form of soreness and weakness of the waist and knees, weakness of the limbs, insomnia, excessive dreaming, and lack of mental concentration. Yin deficiency is afraid of heat, often five heart heat; Yang deficiency is afraid of cold, often cold limbs, and kidney yang deficiency of the body, mostly accompanied by uterine cold, which is prone to cause the uterus blood supply is insufficient, the menstrual flow is low, delayed menstruation, menstrual cramps or amenorrhea, and even fluke conceived a fetus, and fetus is often due to the lack of nutrient supply and developmental delays, so the pre-pregnancy for the kidney deficiency, especially for kidney yang deficiency of the female patients, it is recommended that the best to regulate the health of the body before pregnancy.