In recent days, security incidents have occurred frequently. Many subway stations in Guangzhou have installed security inspection machines. Many expectant mothers are worried: Will passing the security check for pregnant women affect the fetus? Will radiation during security checks affect the fetus? Here, the editor wants to tell you that the radiation during security check has little impact on the fetus. How much safety radiation does the subway security inspection machine have and the import and export security of railway stations, airports and important departments?