Pregnant women farting especially stinky may be physiological reasons, constipation and other reasons. 1. Physiological reasons: intestinal peristalsis and intestinal tension will be weakened during pregnancy, coupled with a reduction in the amount of exercise of pregnant women, when eating more protein-containing food, food storage time in the stomach will also be extended, and under the action of bacterial decomposition in the intestinal tract, more hydrogen sulfide and other gases are produced, which makes the pregnant woman exhaust more, and particularly smelly. To adjust the diet under the guidance of the doctor, appropriate exercise after meals. 2. Constipation: Pregnant women’s own digestive function is weakened, and exercise is reduced, it is easy to constipation, so that the intestinal tract produces more toxins, gases, and so on, there will be pregnant women’s exhaust increased, and particularly smelly phenomenon. To develop good defecation habits, eat more fiber-rich fresh fruits and vegetables, if necessary, under the guidance of a doctor to give lactulose to promote defecation.