Tummy call around 10:30 am may be physiological reasons such as hungry or cold, but also may be pathologic reasons such as mechanical intestinal obstruction, acute gastroenteritis and so on. 1. Physiological reasons: when hungry, the stomach food emptying, gastrointestinal peristalsis will accelerate, due to the lack of food in the stomach, in the intestinal peristalsis will have a stomach growl. Generally after eating food, this symptom will be reduced or disappear. In addition, the abdomen is cold or eat too much cold food, intestinal gas is more, can lead to the stomach grumbling. 2. Mechanical intestinal obstruction: Tumor, foreign body, fecal stone, etc. lead to intestinal obstruction, food, feces, downward discharge is blocked, resulting in intestinal fermentation, producing gas; intestinal peristalsis increases, intestinal sound hyperpronunciation, resulting in grunting. 3. Acute gastroenteritis: Dietary impurity caused by bacterial infection leading to gastrointestinal mucosal inflammation, intestinal mucosal congestion, edema, stimulation of the gastrointestinal tract, intestinal peristalsis increased, causing intestinal hyperacoustic tone, tummy call. If the symptoms of the stomach screaming around 10:30 am, after excluding the physiological causes, it is recommended to go to the hospital in time to identify the causes, under the guidance of the doctor according to the cause of the treatment.