Microwave ovens are a type of non-ionizing radiation that generally has little effect on pregnant women and fetuses. There are generally two kinds of radiation in daily life, one is non-ionizing radiation; the other is ionizing radiation. Generally the former does not have much effect on the human body, more common in daily life, such as microwave ovens, computers and so on. At the same time, microwave ovens have a metal shell outside, for non-ionizing radiation also has a certain shielding effect. Therefore, the normal use of pregnant women, there is generally no effect. Generally if the ionizing radiation, long-term exposure may only have a certain effect, such as X-ray, CT, heavy metals and other radiation. If the exposure is too much, then it is easy to affect the development of the fetus and the pregnant woman’s body. Although the microwave oven does not produce a health threat to pregnant women, but if psychological stress, in order to avoid adverse emotions affecting pregnancy, open as soon as possible to leave or maintain a certain distance. In addition, it should be used according to the instructions to avoid other accidents in use.