Some time ago, in a group of pregnant mothers on WeChat, I saw people discussing the topic of “whether to keep a baby after a preterm miscarriage or a fetal abortion”. Some of them said, “It’s hard to get pregnant with a baby, we should keep it no matter what”; others thought, “Miscarriage and embryonic arrest are both superior and inferior, the right choice is to let nature take its course and not to keep the baby.” So, which of these two statements is correct? Do pregnant mothers who have had preterm miscarriage and fetal arrest and are pregnant again need birth control or not? First of all, let’s understand the causes of “pre-miscarriage” and “fetal abortion”: from the perspective of Chinese medicine, “pre-miscarriage” and “fetal abortion “The main pathogenic mechanism is the damage to the punching point and the lack of solidity of the fetus. 1, mother’s disease —— if the mother is weak in qi and blood; or the parents’ congenital endowment deficiency, kidney deficiency and damage to the punching point; or the mother’s blood is hot, after pregnancy, over-eating spicy heat and feeling heat, blood heat and delusion, fetal movement is also restless; or the mother has obstruction and blood stasis gathered in the uterus, resulting in disharmony of qi and blood and loss of nourishment of the fetal element. 2, child disease —— on the other hand, the fetus itself is weakly endowed, fetal qi, fetus, placenta, either side of the problem, although the parents’ essence can be combined, but can not become real, will also develop into abortion. From the Western medical point of view, the causes are mainly divided into 5 major factors: 1, the first and foremost is the embryonic factor, which is also the most uncontrollable and difficult to correct. Such as embryonic chromosomal abnormalities, including abnormalities in the number or structure of chromosomes; and defects in the development of the pregnant egg, during the development process, due to embryonic defects, including the influence of chemical, physical or biological factors, such as certain drugs, pesticides, total metals, etc. directly or indirectly damage the fetus. 2. Maternal factors. If the mother suffers from systemic diseases, such as acute infectious diseases, hyperthermia or viral infections or severe anemia, hypertension, severe malnutrition, etc. can lead to miscarriage; furthermore, many senior women, especially infertile patients, face the problem of abnormal endocrine function, such as luteal insufficiency, hyperprolactinemia, abnormal thyroid function, etc. is also a major factor causing miscarriage; in addition genital abnormalities, such as longitudinal uterus, unicornuate uterus or uterine adhesions, uterine fibroids, etc. can also lead to miscarriage. 3, immune factors, such as low immune response ability, insufficient closed antibody, so that the embryo is rejected and miscarriage; on the other hand, if the auto or alloimmune response is hyperactive, such as antiphospholipid antibody positive, anti-sperm antibody positive, etc., it can also cause miscarriage. 4, including trauma and mental stimulation, uterine trauma during pregnancy, rough sexual intercourse, abdominal trauma, or adverse mental factors such as excessive tension, anxiety, fear and psychological trauma may also cause miscarriage. 5, other factors, mainly including poor dietary and living habits of pregnant women: excessive alcohol, excessive smoking, drug use, etc. Long-term use of sedatives, immunosuppressants and other drugs can also lead to miscarriage and fetal abortion. From the perspective of etiology, we can realize that there are some risks that we can avoid and can achieve a good pregnancy outcome through prevention and treatment, which is the meaning of our birth control. In the period of the Three Kingdoms, the Jin Dynasty and the North and South Dynasties, Xu Zhicai’s “Month-by-Month Formula for Fetal Health” recorded the problems that pregnant women need to pay attention to during each month of pregnancy; Zhu Danxi also put forward the idea of “clearing heat and nourishing blood before delivery”. “The formula for the nourishment of the fetus in the first month of pregnancy is recorded in the formula for the nourishment of the fetus in the first month of pregnancy. Of course, for ectopic pregnancy, inevitable miscarriage, and abnormal miscarriage must not blindly keep the fetus. For patients who have had pre-eclampsia and fetal abortion, it is not advisable to let nature take its course and let fate take its course after another pregnancy, but to actively preserve the fetus is the right choice. In the early stage of pregnancy, the embryo is easily affected by various factors and cannot grow and develop normally in the uterine cavity. For patients with a history of preterm miscarriage and adverse miscarriage, if they can actively preserve the fetus after getting pregnant again and timely human intervention, the incidence of preterm miscarriage and adverse miscarriage can be greatly reduced. Especially for patients who have had a history of preterm miscarriage, it is important to preserve the fetus after another pregnancy to avoid the formation of recurrent miscarriage. The fetus preservation mentioned here does not simply mean that the pregnant woman should rest in bed and take birth control pills. The first thing to do is to exclude as much as possible the external influences, avoiding environmental pollution, physical and chemical stimulation. 2, parents do a good job in preparing for pregnancy, including pre-pregnancy diet, regular living, exercise; perfect eugenics examination; for abnormal uterine morphology necessary to perform hysteroscopic surgery, first improve the uterine environment; for immune mediation abnormalities, early intervention. 3, pregnant women should strengthen nutrition, pay attention to rest, smooth emotions, careful living, especially to avoid excessive tension, anxiety, emotional stimulation, the so-called “fear of injury to the kidneys”, pregnant women in the case of shock may also occur miscarriage. In the early stage of estrogen and progesterone deficiency, you must not have the idea that you can’t use western medicine during pregnancy because it is not good for the fetus, you should follow the doctor’s advice and supplement the hormone deficiency in the right amount. For the choice of fetus-protecting drugs, Chinese herbal medicine should play the advantage of being safe, inexpensive and highly effective. The spleen and kidney are the root of fetus, and the qi and blood are the source of fetus nourishment, so the fetus should be nourished by tonifying the kidney, strengthening the spleen, benefiting the qi and nourishing the blood. The kidney is the root of the first day, the spleen is the root of the second day, the kidney is strong, the fetus has a system; the spleen is strong, the fetus has a load; the essence is full, the fetus has a nourishment; the fetus will be safe. As the “Medical Zong Jin Jian” cloud: “blood and Qi full of fetal peace, Chong Ren weak fetal fall.” Therefore, it is common to use Chuan Cuo, Du Zhong and Cuscuta to nourish the kidney and calm the fetus, Prince Ginseng and Atractylodes to strengthen the spleen and benefit the qi to calm the fetus, Scutellaria to clear heat and calm the fetus, Su Stem and Sha Ren to regulate the qi and stomach to calm the fetus, Cornu Cervi Pantotrichum to nourish the liver and kidney and nourish the blood to calm the fetus, Agaricus to nourish the blood and stop bleeding, which is also an important medicine to nourish the yin and calm the fetus, and Erhua to clear heat and detoxify the fetus. In addition, patients with recurrent miscarriage should be treated together. In addition, patients with recurrent miscarriage must be treated until the risk period (the maximum month of previous miscarriage) is exceeded by more than two weeks.