Pregnant women exposed to 84 disinfectant on the fetus whether there is a certain chance of existence, not all will have an impact or all will not be affected, but also may be related to the timing of exposure and exposure dose. Although 84 disinfectant is a chemical, but if the dosage is relatively small, generally will not endanger the health of pregnant women and fetuses, such as hospitals routinely use the concentration and amount of disinfectant, generally will not cause harm. However, there are some pregnant women who are hypersensitive, there are cases of allergy or asthma after exposure to 84, which may also indirectly affect the fetus. If a pregnant woman is exposed to large doses of highly concentrated 84 disinfectant, especially in the early stages of pregnancy, there is also the possibility that this may lead to poor fetal development, so it is still necessary to try to avoid contact.