Generally speaking, in the first trimester of pregnancy, i.e. 1-3 months, the pregnant woman’s body is unstable, and the symptoms of early pregnancy are more obvious. In addition, the second trimester of pregnancy, that is, 9-10 months, when the birth is approaching, there is no professional medical environment and team on the plane, which is dangerous for the mother and baby, so it is also not recommended to fly. First, pregnant women take the plane through the security check has no harm General security gates and handheld instruments are through the induction of current detection of metal, the basic harmless to pregnant women. Baggage detector is a special X-ray machine, there is a small amount of radiation, but this radiation is also controlled in line with the safety standards within the dose, there is no greater impact on pregnant women. In addition to the early and late pregnancy, pregnant women are not recommended to fly, the following pregnant women are also not recommended to fly: 1, a history of spontaneous abortion, premature birth; 2, pregnancy for ectopic pregnancy or not completely ruled out ectopic pregnancy; 3, severe early pregnancy reaction or symptoms of pre-eclampsia; 4, congenital abnormalities of the uterus or abnormal placental position; 5, pregnant with twins or 6. Pregnant women with combined medical diseases, such as hypertension and diabetes. Pregnant women need to pay attention to matters related to air travel in order to avoid adverse consequences. Specifically as follows: 1, pregnant women need to be accompanied by someone on the plane; 2, choose a seat close to the aisle or escape, so that pregnant women can easily get up and move; 3, wear loose clothes, flat shoes, and bring more clothes in case of temperature changes; 4, the seat belt should be tied below the waist, not on the abdomen, to prevent injury to the fetus; 5, you can bring cool mint tea, ginger tea, to prevent vomiting or regurgitation; 6, bring the pregnancy medical report Good, easy to understand the situation.