What's wrong with stomach growling?

Gastric purring has some factors that are common for the following reasons: First, consider the disease caused by stomach, more common are chronic gastritis, gastric ulcer or stomach tumor caused by gastric mucosa damage, and gastric function decline, food in the gastrointestinal tract, can not be fully digested, and emptying slowed down, a large number of food in the stomach sharply produce some gas, causing stomach purring phenomenon. Second, also consider whether there is indigestion phenomenon, when the gastrointestinal endocrine digestive enzymes are reduced, food in the gastrointestinal tract can not be fully digested and absorbed, and at the same time these foods produce bad fermentation, produce more gas, gas in the gastrointestinal tract movement will produce the phenomenon of grunting. Third, in eating or speaking swallowed more air, the accumulation of air in the gastrointestinal tract, the body through the oral burp, into belching, part of the gas through the pylorus into the intestinal tract, will affect the gastrointestinal tract wriggle, often can hear the phenomenon of stomach purring.