The smell of gasoline can harm the fetus. Gasoline contains a certain dose of tetraethyl lead, which can release harmful gases such as lead when it is burned, and can be teratogenic to the fetus when it enters the bloodstream through breathing. The smell of gasoline also has an effect on pregnant women, many of whom suffer from nausea, vomiting, dizziness and irritability during pregnancy. The smell of gasoline can aggravate these symptoms and have a mental impact on the pregnant woman. The resistance of both the pregnant woman and the fetus is weak during pregnancy, and it is likely that lead poisoning will affect the development of the fetus. During pregnancy, it is important to reduce the smell of gasoline and contact with chemical products and beauty products. To ensure the healthy development of the fetus, pregnant women should be in an environment with good air. If the environmental pollution is serious, you can bring a mask when you go out. It is also important to enhance nutrition, strengthen body resistance and have regular maternity checkups.