15 weeks of pregnancy feel bloated generally belongs to the normal phenomenon, but may also be caused by disease bloating, the main reasons are as follows: 1, hormone level changes: after pregnancy, pregnant women’s body estrogen, progesterone levels increase, easily caused by pregnancy reactions, nausea, vomiting, abdominal distension and other symptoms, usually to late pregnancy will be self-relieved, no special treatment; 2, uterine pressure: pregnancy with the growth of the fetus The uterus gradually increases to compress the abdominal organs, resulting in slower intestinal peristalsis and reduced digestive function, resulting in bloating, which can be relieved by adjusting sitting and sleeping posture; 3, gastrointestinal diseases: if indigestion, intestinal inflammation and other diseases occur during pregnancy, it can cause the smooth muscle of the gastrointestinal tract to relax and slow down peristalsis, resulting in abdominal pain, diarrhea, abdominal distension and other symptoms, it is recommended to seek medical treatment in a timely manner. The causes of gastrointestinal disorders include overeating, excessive consumption of fatty foods, and cold in the abdomen. Pregnant women should try to eat lightly during pregnancy, eat less and more often, do not eat greasy or spicy stimulating food, and have regular bowel movements to avoid aggravating the burden on the stomach and intestines. Do not eat too cold food to avoid stimulating the gastrointestinal tract to cause diarrhea and discomfort. You can promote intestinal peristalsis through abdominal massage and increase the intake of dietary fiber to reduce the occurrence of constipation during pregnancy. Ensure sufficient rest and regular maternity checkups. If you have discomfort during pregnancy, you can go to the obstetrics and gynecology department of the hospital for examination first, and then determine the cause of abdominal distension according to the examination results and carry out symptomatic treatment under the guidance of the doctor.