Hi, welcome to the ehealth forum and I am glad to help you.
Stomach growling typically is due to normal digestion. Stomach growling can occur when you're hungry. But it can also occur after eating or between meals when food is passing through your intestines.
Hunger and appetite are controlled by a complex system of hormone-like substances. When you haven't eaten for a while, these substances are released and cause a part of your brain called the hypothalamus to "switch on" your desire to eat. A message is then sent to your stomach and intestines. This triggers muscle contractions and the release of acids and other digestive fluids which causes the sounds you hear. The thought, sight or smell of food can also trigger this response.
Sometimes excessive stomach noise can be a symptom of an underlying gastrointestinal disorder, such as irritable bowel syndrome. But in such cases, stomach noise usually is accompanied by other symptoms such as bloating, cramping, diarrhea or excess gas.
Hope this helps. Take care.
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