Men can have children with the New Crown vaccine. The New Crown vaccination guidelines do not explicitly require that men cannot have children after receiving the vaccine, but it is recommended to avoid having children during the New Crown vaccination, and if you are planning to receive the vaccine in the near future, you can temporarily postpone your pregnancy preparation plan, and it is generally recommended to have children 3 months after the full course of the New Crown vaccine. There is no research to prove whether the New Crown vaccine has any effect on male sperm, but the New Crown vaccine is an inactivated virus vaccine, and getting the New Crown vaccine can be considered as the human body being infected by the virus, and then a series of immune response is generated in the organism to achieve the purpose of prevention, which may have certain effects on the physical health of men, and there may also be adverse reactions such as hypothermia, nausea and vomiting, so it may affect Sperm quality, therefore, it is not recommended to have children during the period of Neoconazole vaccination. However, if a man finds out that a woman is pregnant during the New Champions vaccination, there is no need to terminate the pregnancy immediately. Common factors that affect male fertility include smoking, alcohol consumption, and reproductive system diseases. Long-term smoking will affect the quality of semen, reduce sperm vitality, increase the probability of fetal malformation and miscarriage; alcohol will, to a certain extent, affect the sperm production function of male testicles. Therefore, men who are planning to have children should pay attention to quit smoking and drinking and eat reasonably, and also consider the physical condition of women and the new crown vaccination.