Lying in bed at night, stomach grumbling is considered to be caused by physiological factors, may also be intestinal flora imbalance, acute gastroenteritis and other disease factors. 1. Physiological factors: If you go to bed at night hungry, it can lead to increased peristalsis, causing active bowel sounds, followed by stomach grumbling, which is a normal physiological phenomenon. 2. Disease factors: If dinner eating unclean food leads to the occurrence of acute gastroenteritis, gastrointestinal peristalsis can be abnormal changes, resulting in stomach grumbling, can also be accompanied by diarrhea, abdominal pain and other symptoms; intestinal flora imbalance, intestinal balance of the normal flora was destroyed, can cause intestinal peristalsis faster, resulting in stomach grumbling. When you are lying in bed at night, after excluding physiological factors, it is recommended that you go to the hospital in time, ask the doctor to make a judgment, clarify the cause of the disease, and actively treat it.