The feeling of breathlessness in late pregnancy is mainly caused by the inhibition of the normal functions of the heart and lungs due to the compression of the heart and lungs by the increased base of the uterus, and some pregnant women may experience breathlessness due to severe anemia. In the late pregnancy, pregnant women should adjust their living habits, try to open the windows and doors regularly to ventilate the air and keep sufficient oxygen in the indoor air. The pregnant woman should pay attention to eating less and more meals, avoiding the expansion of the stomach volume by eating too much at once, which will increase the pressure on the heart and lungs. After the meal, you should pay attention to appropriate walking back and forth, which can promote the emptying function of the gastrointestinal tract, avoid bed rest immediately after the meal, if you want to rest, it is recommended to consider taking a semi-recumbent position. If the symptoms are severe, you should go to the hospital promptly, and low-flow oxygen inhalation can be given to relieve the symptoms.