Bowel sounds for intestinal peristalsis when the intestinal gas and liquid flow, produced by a kind of intermittent gurgling sound (or gas over water). Abnormalities in the frequency and pitch of the bowel sounds can be characterized as tinkling or metallic sounds, which can indicate acute gastroenteritis, intestinal obstruction and other diseases. Under normal circumstances, the bowel sounds are about 4~5 times per minute, and their frequency and pitch are highly variable. After a meal, the frequency of bowel sounds will increase, and the gurgling sound will be larger; when resting, the bowel sounds are sparse and weak. Bowel sounds more than 10 times per minute, and grunts louder than usual when the bowel sounds active, commonly in acute gastroenteritis, gastrointestinal hemorrhage patients; Bowel sounds can be tinkling or metallic sounds when they are hyperactive, commonly seen in patients with mechanical intestinal obstruction; bowel wall peristalsis is weakened bowel sounds are weakened; paralytic intestinal obstruction and acute peritonitis patients bowel sounds often disappear. When found that the bowel sound enhancement or weakening should go to the hospital in a timely manner, improve the examination, clear cause of the disease to give targeted treatment.