If you live in an environment where formaldehyde exceeds the standard during the preparation for pregnancy, it will definitely have an effect on your body, not only on the woman who is preparing for pregnancy, but also on other people. Once found that formaldehyde exceeds the standard, it is recommended to find ways to give the appropriate treatment, such as formaldehyde can be removed to deal with or to change the environment and then prepare for pregnancy, pregnant women or pregnant after the fetus will not cause the corresponding impact. During the whole period of preparation for pregnancy living environment, working environment is also very important, for example, if the working environment in the formaldehyde exceeds the standard, or other chemical agents exceed the standard, may lead to fetal malformation. One is to adjust the work, the other is to adjust their living environment, in favor of eugenics, in addition to dietary enhancement of nutrition, but also quit smoking, quit drinking.