Diarrhea and stomach grumbling all the time are related to acute gastroenteritis, irritable bowel syndrome, and ulcerative colitis. Acute gastroenteritis is caused by poor diet or overeating, especially when eating rotten or spoiled food, the bacteria and viruses in the food cause irritation to the intestinal mucosa, thus inducing an attack of the disease. During the attack, the intestinal mucosa is stimulated by inflammation and peristalsis is accelerated, and the contents of the intestine are excreted rapidly, which can cause diarrhea. And the absorption function of the intestine is affected, and more water and gas will produce a gurgling sound. Irritable bowel syndrome is mainly caused by bad emotions, and intestinal function will be impaired, and symptoms of hyperactive bowel sounds and diarrhea will occur. Ulcerative colitis mainly infringes on the colon. When the function of the colon is impaired and it cannot absorb water, there will be more water from food residues in the intestine, and the stomach will have a gurgling sound. The mucosa of the colon is stimulated by inflammation and peristalsis is accelerated, which will be accompanied by diarrhea.