When people talk about eugenics, it seems to be the business of women, pre-conception checkups, pregnancy care, fetal education and so on, and it seems to have no part for men. In fact, this view is wrong, men have the same responsibility in eugenics. In the period before the birth of a child, the male “performance” has a significant impact on the eugenics of the baby. A large number of clinical facts have confirmed that the father has a very close relationship with the health of the baby, so what issues should the husband pay attention to before pregnancy? 1, pre-baby eugenics check Men before planning to have children, it is best to do a comprehensive pre-baby eugenics check to see if there are pathogenic infections; whether the semen is normal, whether the blood type matches, whether the chromosomes are normal, etc.. If problems are found, treat them in time to avoid problems after pregnancy and then take remedial action. From the clinical observation, a significant proportion of men have reduced sperm count, low vitality and increased malformed sperm. After effective treatment, the occurrence of spontaneous abortion due to sperm quality problems is greatly reduced, indicating that pre-fertility eugenics examination is very necessary. 2, maintain fine seeds In recent years, due to the increasing deterioration of people’s living environment, male fertility is declining, and human sperm density has dropped by half in the past 50 years. The World Health Organization has issued a warning to people. Some men have problems with the quality and quantity of sperm, producing a lot of unqualified “seeds”, in this case birth, the formation of embryos are often spontaneous abortion or abnormal development, easy to bring harm to eugenics. 3, to develop good habits bad habits, the impact on male fertility is very significant. Drinking a lot of alcohol has an obvious toxic effect on the male reproductive system, which can make the quality and quantity of sperm abnormal. It is reported that “one month before the wife became pregnant, for example, the husband drank 30 ml of alcohol equivalent per day; or drank liquor 10 times in January, more than 50 ml each time; or had drunk alcohol once in January, and the amount of alcohol is greater than or equal to 125 ml; his wife is prone to give birth to low weight babies”. Such a low weight baby will not only bring difficulties in feeding, but the baby will be adversely affected in terms of disease resistance, growth rate and intellectual development. Parents’ drinking not only affects them, but also the next generation. It is important to maintain a good physiological condition before having children. Staying up too late can reduce the body’s immune system, so you should pay attention to scientific rest; some foods that are harmful to fertility, such as celery and cottonseed oil can reduce the vitality and number of sperm, so you should avoid eating them; hot water and high temperatures are not conducive to sperm production, so you should avoid hot baths and saunas; too much smoking by men can not only affect the quality of sperm, but also affect the normal development of the embryo and fetus due to passive smoking by the wife. You should quit smoking before conception and for a considerable period of time after your wife becomes pregnant. The influence of emotional and mental factors on eugenics is receiving more and more attention from the medical community. In the past, people pay attention to the influence of the mother’s emotions on the fetus, and medical research in recent years has proved that a poor family environment, stressful work pressure, and fear of survival situations are not conducive to fertility. Some data show that children born in poor emotional and mental conditions are prone to abnormalities in their temperament and can easily develop withdrawn and perverted personalities. Maintaining a good mood and a relaxed work environment is not only beneficial to men’s own health, but also has a positive impact on fertility. In the time of childbirth, should maintain a good family environment, couple love, emotional joy, is a great joy of life, is also an important part of eugenics. 5, away from the harmful working environment The testicles are very sensitive to the surrounding adverse environment, and the adverse environment can damage the sperm production function of the testicles. Research has confirmed that substances harmful to sperm include lead, mercury, cadmium, tin, arsenic, nickel, cobalt, benzene, etc. These substances can have a bad effect on male fertility. For example, pesticides can also cause sperm abnormalities, which in turn can lead to miscarriages, stillbirths, and newborn defects; radiation, isotopes, and electromagnetic waves can all cause male sperm abnormalities, resulting in various degrees of birth defects in newborns. When planning to have children, you should temporarily stay away from these adverse environments that are not conducive to childbirth. If you really can’t leave, you should pay attention to your own protection at work, operate in accordance with regulations, and raise your awareness of self-care. Once conceived in an unprotected state, attention should be paid to pregnancy checkups and timely measures should be taken to detect abnormalities. 6.Treat the diseases you have suffered from There are many diseases that have adverse effects on eugenics. If men suffer from hepatitis B, positive anti-sperm antibodies, mycoplasma, chlamydia infection, syphilis, gonorrhea and other sexually transmitted diseases, they will affect male eugenics. For example, hepatitis B, where HBV-DNA and HBeAg are positive, there is a risk of carrying the hepatitis B virus through the sperm and fetal infection; anti-sperm antibodies can affect the fertility of sperm and the development of the embryo. As long as the sexually transmitted diseases are detected, they should be treated seriously and cured before having children. 7, avoid taking drugs indiscriminately is a medicine three times poisonous, the use of drugs should be careful. Before you plan to have children, you should be more cautious with your medication and avoid abuse. Clinical research data shows that many drugs have adverse effects on male reproductive function and sperm quality, and these drugs can easily lead to neonatal defects, such as delayed growth and abnormal behavior of infants. Men should not abuse drugs before having children, and when they have to use drugs, they should consult a doctor and not do it on their own. Even if it is a supplement, you should consult your doctor to make sure that there are no side effects before you can take it.