There are many reasons for left upper abdominal gurgling, which can be divided into physiological and pathologic causes, pathologic such as acute gastroenteritis, intestinal obstruction, and so on. 1. Physiological reasons: normal digestion of food residues in the intestinal tract, resulting in peristalsis of the gastrointestinal tract and the appearance of intestinal sounds. Psychological tension and other neurological factors may promote peristalsis of the digestive tract, so that the left side of the abdomen grumbles, which is a normal physiological phenomenon. 2. Pathological causes: such as acute gastroenteritis, intestinal obstruction. Acute gastroenteritis is inflammation of the gastrointestinal mucosa, due to inflammation stimulation, resulting in intestinal hyperacoustic; intestinal obstruction leads to intestinal food residue elimination obstacles, resulting in intestinal hyperacoustic, will lead to abdominal grumbling. There may be many other reasons for left upper abdominal grumbling, such as persistent failure to relieve the need to consult a doctor for timely examination, a clear diagnosis, and active treatment.