Diarrhea in newborns with a rumbling tummy is mainly caused by accelerated bowel movements and hyperactive bowel sounds during diarrhea. Newborn babies with diarrhea and tummy grumbling may be due to a variety of causes, which may be related to dietary factors, cold in the abdomen or infection. It is important to deal with the symptoms according to the different causes. 1, abdominal cold: baby if the abdomen is cold, it is easy to cause gastrointestinal peristalsis to speed up, which in turn causes diarrhea. At this time to pay attention to the baby’s abdomen warmth, in order to relieve the symptoms of diarrhea, parents can also massage the baby’s stomach, with the belly button as the center, with the palm of the hand gently rub the abdomen, clockwise and counterclockwise 36 times each. 2, dietary factors: (1) the baby will eat milk because of incorrect posture or improper feeding, resulting in the air sucked into the stomach, such as not in time to expel the air in the stomach, the baby’s stomach will produce intestinal flatulence, a gurgling sound. In order to avoid intestinal flatulence, you can hold your baby upright and burp him gently to expel the air from his stomach before putting him down to lie flat. (2) Lactose intolerant babies can also have diarrhea: the baby’s intestines cannot secrete enzymes that break down lactose, and lactose is broken down by bacteria in the intestines into lactic acid, which destroys the alkaline environment of the intestines and causes the intestines to secrete large amounts of alkaline digestive juices to neutralize lactic acid, so mild diarrhea can easily occur. If the baby’s symptoms improve quickly after switching to a lactose-free formula, then and probably due to lactose intolerance. 3. Some children have diarrhea due to infection and need to use antidiarrheal medication under the guidance of a doctor. (1) gastrointestinal mucosa protectors, such as montelukast; (2) intestinal probiotics, such as bifidobacterium, lactobacillus, Saccharomyces boulardii, etc.