Pregnant women’s stomach distension in the 6th month of pregnancy is normal in most cases, but it may also be some pathological conditions, which need to be identified according to the degree of abdominal distension and the presence of other accompanying symptoms. 1, slowed intestinal peristalsis: due to increased levels of estrogen and progesterone, caused by the slowing of intestinal peristalsis, easy to appear flatulence; 2, reduced activity: pregnant women are less active during pregnancy and have been bedridden, which may make the intestinal peristalsis slow down and 3, diet is not moderate: pregnant women do not pay attention to dietary adjustment during pregnancy, excessive diet, resulting in increased gastrointestinal burden, pregnant women feel bloated, especially the upper abdomen after meals feel bloated; 4, the emergence of pseudo contractions: pregnant women have pseudo contractions, can have a tight and hard bloated feeling in the lower abdomen, resulting in bloating, if accompanied by vaginal bleeding, you need to go to the hospital in time for examination; 5 The symptoms of bloating may be caused by the gradual increase of luteinizing hormone in early pregnancy, which will make the peristaltic ability of the intestines worse, thus affecting the excretory function and leading to the appearance of symptoms such as stomach distension; 6, high stomach acid: women’s stomach acid excretion ability is poor after pregnancy, and the relatively high stomach acid may trigger pregnant women’s stomach distension; 7, gastrointestinal diseases: if pregnant women themselves have gastrointestinal diseases, such as constipation, gastroenteritis, stomach ulcers and other diseases, they will also The feeling of flatulence may appear. It is recommended to seek medical advice and follow the doctor’s instructions for targeted medication.