Microwave ovens will produce some radiation to pregnant women, if the use of a shorter period of time, do not need to worry too much, if used for a long time, the radiation will be greater, need to remain cautious. Microwave oven cooking through electromagnetic waves, will produce some radiation, if the pregnant woman is only occasional contact, the time is only about 10 seconds, will not produce too obvious impact. If a pregnant woman is exposed to microwave ovens for a long time, this radiation will produce some cumulative effects that may have some impact on the fetus, so she needs to remain vigilant and avoid prolonged exposure. Pregnant women should be careful to keep at least one meter away from the microwave oven when using it. At the same time, pregnant women should follow the doctor’s advice to take obstetric examination on time, and if there is any discomfort, they should go to the hospital in time and follow the doctor’s advice to deal with the treatment.