Flatulence in pregnant women may be a normal phenomenon during pregnancy, or it may be caused by constipation, or it may be caused by gastritis and other diseases, with different causes and different treatment methods. 1. Physiological factors: after pregnancy due to changes in hormone levels in the pregnant woman’s body, the smooth muscle peristalsis of the gastrointestinal tract will slow down, and the enlarged uterus will also compress the abdominal gastrointestinal tract and other digestive organs, resulting in pregnant women with flatulence symptoms, can be a small number of meals, appropriate exercise, generally can be relieved. 2. constipation: after pregnancy, the enlarged uterus can press the rectum will produce the symptoms of constipation, in addition, the gastrointestinal tract peristalsis slowdown and other factors can also aggravate the symptoms of constipation, constipation can also lead to pregnant women with symptoms of flatulence, the treatment, pregnant women can eat more dietary fiber-rich foods, and then moderate exercise to alleviate the symptoms. 3. Gastritis: If a pregnant woman originally suffered from gastritis disease, can also appear the symptoms of flatulence, this situation should pay attention to the diet, eat less spicy, stimulating, greasy food, if necessary, you can take medication to relieve. After eliminating physiological factors, if the symptoms of flatulence in pregnant women continue to be unrelieved, it is recommended to consult a doctor in time to identify the cause and ask the doctor to deal with it.