The menstrual period is a special stage of the female physiological cycle, and some doctors clinically do not advocate that patients take herbal medicine during the period, but in fact, it is an important stage for the metabolism of the female uterine environment and the removal of the old and the new, and also an important period for clinical use of medicine to remove the pathological products that cause infertility. The classical theory of “do not supplement indiscriminately during menstruation and do not diarrhea indiscriminately after menstruation” has some truth to it, but the clinical judgment must be based on the patient’s cold and heat deficiency. For patients with internal evil realities (blood stasis, phlegm and dampness, evil heat, etc.), such as uterine fibroids, adnexal cysts, tubal obstruction, endometriosis, etc., as stated in Jing Yue Quan Shu, “Stagnant blood stasis is only found in women. The evidence is due to menstruation or postpartum, where internal injury is raw and cold, or external wind and cold, or grief and anger injure the liver, resulting in stagnant blood, or worry and thought injure the spleen, resulting in Qi deficiency and blood stagnation, or accumulated labor and weakness, resulting in weakness of Qi. In short, when the blood is moving, the remaining blood is not clean, and there is a reversal, then the stagnant day accumulation and gradually become Y carry on …… women with long term illnesses and persistent gangrene, the spleen and kidneys must be deficient, the evil and positive fight, firm and immobile, the gas is linked to the subordinate organs are infertile.” The “Women’s Science Classic” also says: “Y obstruction is mostly caused by the loss of the seven emotions and the misconduct of the five viscera.” Blood stasis is both a pathological product and a cause of disease, and is often accompanied by other causes such as qi stagnation, cold or heat, so blood stasis is often seen together with liver stagnation, qi deficiency, damp heat, deficiency heat, phlegm dampness and cold. In endometriosis infertility, blood stasis is often accompanied by kidney deficiency, and can also be accompanied by deficiency heat and cold. Blood stasis in immune infertility and tubal obstruction infertility is often accompanied by damp-heat and deficiency-heat. The menstrual period is the best period for treating blood stasis, phlegm-dampness and evil-heat, and as the menstrual blood leaks out during this period, the evil of blood stasis, phlegm-dampness and evil-heat can also be leaked out. The evil is discharged one can go to the evil is safe, the second can be free of the closed door of the disadvantages of the exile, three can focus on the advantages of medicine to eliminate chronic diseases. In clinical practice, we often use Kai Yu Tang, combined with Blood Mansions and Blood Stasis Tang, Diaphragm and Blood Stasis Tang, Shao Abdominal and Blood Stasis Tang and other additions and decreases, and with Shuang Bai Disperse Blood Stasis Cream applied externally to the lower abdomen to achieve better clinical results. As the “Medical Lin Correction – Shao Abdominal Expelling Stasis Tang” cloud: “more surprising, the seeds of this formula are like gods, every menstruation see the day to take up, a series of five payments, but only four months will become a fetus”. For patients with Qi deficiency, Yang deficiency and Blood deficiency, clinical analysis should be specific to the condition, not uniform, and not bound by the theory of “don’t make up during menstruation and don’t make up for diarrhea after menstruation”, and should be treated according to the evidence by tonifying the kidneys and benefiting Qi (such as using Zisheng Tang and Liu Zi Tang). If the infertility patient has serious deficiency of qi, she can also use Zisheng Tang as the basis of tonifying qi before menstruation, supplemented by the medicine of moving qi and blood to promote menstruation. Through clinical observation, the treatment effect is quite good, so that the experience of previous generations should be learned discriminately and applied flexibly in combination with actual practice. As Zhang Jinyue pointed out, “the formula of seeds, there is no fixed rule, depending on the person, each appropriate, so where the cold should be warm, the hot should be cool, the warm should be astringent, the deficient should be tonic, to remove its bias, then Yang and biochemical carry on”.