It is your wish to have a healthy, smart, lively and cute baby, and it is the constant pursuit of every medical worker in the Department of Reproductive Medicine at the Affiliated Hospital of Nanchang Institute of Medical Sciences (Nanchang Male Hospital)! We all know that the birth of a new life is the recombination of genetic material of both parents, which requires us to do a good job of protection from the source, for men should pay attention to what aspects to protect their “seeds”? In this regard, we suggest the following: 1, keep a happy mood, and strive to create a happy and peaceful family atmosphere; 2, eat more green food, such as fresh vegetables or fruits, do not eat celery, and drink less carbonated beverages; 3, eat more food to promote sperm production and improve its vitality, such as walnuts, peanuts, melon seeds, nuts, quail eggs, etc.; 4, 3-6 months before planning to conceive, prohibit exposure to radiation such as X-rays Avoid contact with X-rays, CT, MRI and computer, cell phone, microwave radiation, etc.; 5. Wear less tight triangular underwear and loose cotton underwear; 6. Go to high temperature environments, such as welding sites, processing stoves, saunas and hot baths; 7. Do not contact harmful and toxic chemical products, such as pesticides, insecticides, industrial alcohol, cotton seed oil and other organic chemicals; 8. Do not contact with non-marital sex, do not contact with drugs; 9, regular living, regular life, do not stay up late, do not sit down, do not smoke, less alcohol; 10, should be under the guidance of a doctor to use drugs, not just private drugs, you can take a small amount of vitamin C and E and other drugs beneficial to sperm; 11, the establishment of a scientific and regular sex life, such as arrangements in the first week after the wife clean menstruation 2-3 times, 3-4 times in the second week The woman should not get up immediately after the intercourse, but should slightly cushion her hips and lie down for about 2 hours; 12. It is recommended that the woman should regularly monitor ovulation, clarify fertility and tubal patency.