Pregnant women try not to light mosquito coils to repel mosquitoes, will have a negative impact on the body and the fetus. Mosquito coils belong to chemical products, most of the mosquito coils contain some pyrethroids, insecticides and other additives, the process of pointing mosquito coils may produce some harmful substances, pregnant women inhale will have a certain impact on their own health, but also may have a certain impact on the fetus, for example, long-term exposure to excessive, may lead to fetal malformation. Pregnant women usually in addition to insects, try to avoid point mosquito incense mosquito repellent, but to do a good job of anti-mosquito measures, you can install mosquito nets on the bed, or in the door to install anti-mosquito curtains. In addition, pregnant women usually try to avoid going to the outdoor with flowers and plants in summer to avoid mosquito bites.