With the progress of society and the continuous improvement of people’s awareness, eugenics is getting more and more attention and importance. How can we have a healthy baby? What should people who are preparing to become parents start with? The conception of a healthy baby starts before pregnancy, so parents-to-be should start from the pre-pregnancy. So what must be done before pregnancy? After the abolition of China’s mandatory marriage examination, the marriage examination rate has dropped dramatically, and diseases affecting the health of mothers and babies are on the rise. Therefore, parents-to-be in the pre-pregnancy to understand their own whether there is a disease affecting fertility and the health of future generations, and some related counseling and pre-pregnancy preparation is particularly important. First, pre-pregnancy medical counseling: medical counseling and medical examination must be carried out before pregnancy to understand whether the couple has any diseases that are not suitable for conception, to understand the function of the heart, liver, kidney and other organs of both parties, and to understand whether there is any disease of the reproductive organs, and to suggest that couples suffering from acute and chronic infectious diseases, sexually transmitted diseases, and medical and surgical comorbidities should go to the relevant departments to assess their diseases, and to evaluate whether they are suitable for childbearing or not. Second, pre-pregnancy genetic counseling: couples with a history of family aggregation diseases, family genetic diseases, or having given birth to a deformed child are recommended to undergo genetic counseling when they are ready to get pregnant. Some diseases are hereditary, and if you or your husband have a close relative with a hereditary disease, you or your husband may also be a carrier of the disease-causing gene, and the offspring may also be a patient. Therefore, you should visit your doctor before you plan to get pregnant in order to estimate the risk of your offspring developing the disease and, if necessary, undergo prenatal diagnosis at a certain gestational week to avoid the birth of a defective child. Recessive genetic diseases develop when both parents carry the gene that causes a disease and pass it on to the fetus at the same time. Therefore, couples who have given birth to a child with a genetic disease or deformity are likely to carry certain disease-causing genes at the same time and should undergo prenatal diagnosis for another pregnancy. In consanguineous marriages, since both spouses come from the same family, the probability of carrying the same disease-causing genes at the same time is significantly increased, and therefore, the incidence of recessive genetic diseases in the offspring will also be significantly increased. Inbreeding should be avoided. Third, the preconception preparation: a new life cycle begins with the embryo, so before the embryo begins to form we have to create an excellent breeding environment. 1, scientific selection of the time of conception: pregnancy should not be immediately after marriage, 1-2 years after marriage to prepare for pregnancy is good. Older couples, should be prepared for pregnancy on the basis of 3 months after marriage to start pregnancy is conducive to eugenics. In addition, couples preparing for pregnancy should also do a good job of psychological, physiological and life behavior, etc. fully prepared for the gestation of a healthy baby to create a safe environment. 2, pre-pregnancy reasonable and scientific use of drugs: If you suffer from a disease, need to take long-term medication, such as diabetes or epilepsy, etc., before you intend to get pregnant should tell the doctor, in order to timely change the treatment of disease medication, because some medications may have a certain impact on the development of the fetus, or will make it more difficult for you to conceive. If you have previously used medication to prevent pregnancy, you should stop taking the pill completely and return your body to a normal menstrual cycle before preparing for conception. 3, pre-pregnancy virus screening: during pregnancy, especially early pregnancy (within 12 weeks) rubella virus, cytomegalovirus or herpes simplex virus infection, can lead to fetal congenital defects, such as congenital cataracts, deafness, cardiovascular defects, neuromotor disorders, etc.; Toxoplasma gondii virus infection during early pregnancy can lead to stillbirth, preterm labor, fetal deformities, severe brain, eye and other disorders. Therefore, toxoplasmosis, rubella virus, cytomegalovirus, herpes simplex virus (TORCH) should be examined before pregnancy, and those who are infected are recommended to undergo medical counseling, and can be vaccinated if necessary. 4, away from radioactive sources, toxic and harmful substances: If you or your husband in the work often contact with some chemicals, anesthetics, anticancer drugs, disinfectants, radiation, or long-term exposure to some heavy metals, such as lead, mercury, arsenic, benzene, organophosphorus, trinitrotoluene, PCBs, gasoline emissions, etc., which will affect your chances of conception, or bring some harm to the fetus, as far as possible, before your pregnancy Before you become pregnant, try to switch to a safer job or at least try to avoid these hazards. Once you are pregnant, you should take further protective measures, such as reducing working hours and work intensity. 5, maintain normal weight: at least six months before conception to maintain a normal weight commensurate with the height, which is not only conducive to the conception, but also beneficial to the development of the fetus. If you are seriously overweight or underweight before pregnancy, see your doctor and get advice on how to get to a normal weight. Unless you have a serious weight problem, do not diet during pregnancy. Balanced nutrition during pregnancy, dieting or partiality will make the fetus lack or lose essential nutrients. 6. Reasonable diet and balanced nutrition: If your daily meal is made up of a reasonable combination of rich and fresh foods, it will increase your chances of conceiving and having a healthy and smart baby in the future. It is recommended that both husband and wife start to take folic acid supplements three months before pregnancy to avoid the occurrence of fetal neural tube malformation. Women who have anemia before pregnancy should be given iron supplements to correct the anemia before pregnancy. In the pre-pregnancy and even throughout pregnancy, women should ensure that the intake of iodized salt, appropriate increase in the intake of seafood, can reduce the newborn’s mental retardation, growth disorders, such as the occurrence of hypothyroidism children. 7, stop smoking and drinking: once ready to get pregnant, parents-to-be should at least from 3-6 months before pregnancy, start to quit smoking and alcohol bad habits, while avoiding passive smoking, because tobacco and alcohol will have an impact on male and female fertility. In addition, smoking or passive smoking and alcohol consumption during pregnancy can harm the development of the growing fetus and the baby after birth. 8, insist on enough exercise: in order to maintain a healthy body, you should have a purpose to do some aerobic exercise before pregnancy, such as at least 20 minutes of walking every day. 9, to maintain a good, stable mood: in the state of mental tension, excessive pressure, will often make prospective fathers and mothers melancholy, worry and short-tempered, can make the cerebral cortex dysfunction, resulting in neurological and endocrine dysfunction, affecting the sperm and egg production and quality, can be seen in the prospective fathers and mothers of the psychological behavior of the direct impact on the baby’s health. Thus, pre-pregnancy couples must maintain a good disposition and stable emotions. A new life cycle begins before pregnancy, and thorough preparation by the couple before pregnancy will give pregnancy a good start. Expectant parents should make a good plan for pregnancy, have a reasonable arrangement, maintain a good mood, healthy body and reasonable diet, avoid contact with all harmful factors, for the beginning of a new life to create an excellent breeding environment, in order to usher in the birth of a healthy baby!