The most common cause of a bulging stomach without menstruation is gastrointestinal discomfort, with indigestion being the most likely, it is recommended that appropriate exercise can promote intestinal peristalsis to relieve discomfort. It is also necessary to be alert to the occurrence of pregnancy, especially for women who are not taking any contraceptive measures and need to undergo early pregnancy tests. Most of the pelvic congestion may occur around the time of menstruation, which may lead to abdominal discomfort, and the symptoms can be gradually relieved with the onset of menstruation, but still need self-regulation. Pay attention to a light and reasonable diet, avoid eating too much greasy, indigestible food and too sweet food to prevent aggravation of stomach discomfort, and pay attention to the presence of nausea and vomiting, diarrhea and other uncomfortable symptoms to prevent the possibility of acute gastroenteritis.