It is not recommended that pregnant women use mosquito liquid to repel mosquitoes. Mosquito liquid contains ether, benzene, pyrethroids and other chemical ingredients, in the process of burning will emit odorless, toxic odor to paralyze mosquitoes, and then play the role of mosquito repellent. As pregnant women in the process of pregnancy resistance is relatively weak, and mosquito liquid burning odor may have an impact on pregnant women and pregnant women in the womb of the fetus. Pregnant women who inhale the odor emitted by the mosquito liquid may experience dizziness, vomiting symptoms, which leads to the fetus in the abdomen lack of oxygen, and in severe cases may also lead to fetal development deformities. Although the mosquito liquid is produced through strict national standards, but it still contains a small amount of chemicals, so it is not recommended that pregnant women use mosquito liquid. Pregnant women can use mosquito nets to prevent mosquito bites, or the use of electric mosquito pats to drive mosquitoes, the use of electric mosquito pats should pay attention to electricity safety.