Farting during pregnancy is very smelly, mainly caused by poor digestion of food in the intestines, resulting in this symptom on the one hand is related to the weakened function of the gastrointestinal tract during pregnancy; on the other hand is related to poor dietary habits, introduced as follows: 1. After a woman is pregnant, the estrogen, progesterone and chorionic gonadotropin in her body are significantly elevated, which will have an adverse effect on the function of the gastrointestinal tract of pregnant women, resulting in The digestive capacity of the gastrointestinal tract decreases, peristaltic and emptying dysfunction, and the stomach contents cannot be discharged from the intestines in time, which can easily produce symptoms of abdominal distension, constipation and excessive exhaustion. 2. Excessive dietary intake of pregnant women during pregnancy, eating too many eggs, chicken, beef, mutton and other high-protein diets, coupled with poor digestive function of the gastrointestinal tract, resulting in incomplete digestion of these foods, leading to excessive gas in the intestines, which with a distinct odor.