In general, the stomach is always grumbling at night may be due to irregular diet, indigestion and other reasons. 1. Irregular diet: eating less dinner, causing the stomach to empty food faster, hunger, the cerebral cortex receives the signal, stimulating the gastric glands to secrete digestive juices, causing gastric peristalsis to increase the stomach, the air and water in the stomach collide with each other, resulting in gurgling sound. 2. Indigestion: Eating too much spicy stimulation, cold and greasy food that is difficult to digest, such as marinated meat, fried chicken, strong tea, coffee, ice cream, etc., stimulate the gastrointestinal mucosa and aggravate the burden on the gastrointestinal tract, causing indigestion and nausea, abdominal distension, abdominal pain, and intestinal hyperacoustic sounds and other symptoms. The stomach is always gurgling at night may also be gastroenteritis, peptic ulcer and other diseases, it is recommended to consult a doctor in order to clarify the diagnosis, targeted treatment.