In general, not hungry stomach rumbling may be caused by improper diet, gastroenteritis, gastric ulcer and other reasons. 1. Improper diet: excessive intake of spicy, cold, greasy and other stimulating foods, such as ice cream, spicy hot pot, alcohol, coffee, etc., stimulate the gastrointestinal mucosa, so that the gastrointestinal tract peristalsis increased, causing stomach rumbling; eating too much gas-producing foods, such as cauliflower, soy milk, etc., can lead to indigestion, causing bloating, farting and other phenomena. 2. Gastroenteritis: acute and chronic inflammation of the gastrointestinal mucosa caused by bacteria, viruses, fungi, parasites, etc., leading to gastrointestinal mucosal edema, congestion and other inflammatory reactions, resulting in abdominal pain, bloating, diarrhea, nausea, vomiting and other symptoms, which can lead to increased intestinal sounds. 3. Gastric ulcer: excessive secretion of gastric acid or Helicobacter pylori infection and other factors cause ulcers in the gastric mucosa, causing symptoms such as gastric distension, gastric acidity, abdominal pain and so on, abdominal pain often occurs after eating. Gastric ulcers cause a decline in the digestive function of the stomach, can cause bloating, diarrhea and other indigestion symptoms, resulting in stomach rumbling. There are many other reasons for not being hungry, such as intestinal obstruction, etc. It is recommended to consult a doctor in time for a clear diagnosis and targeted treatment.