Abdominal (Bowel) Sounds Abdominal (bowel) sounds Abdominal, or bowel, sounds refer to noises made within the small and large intestines, typically during digestion. They’re characterized by hollow sounds that may be similar to the sounds of water moving through pipes. Bowel sounds are most often a normal occurrence. However, frequent, unusually loud sounds or the lack of abdominal sounds may indicate an underlying condition within the digestive system. Symptoms of abdominal sounds Abdominal sounds are…"Abdominal (Bowel) Sounds"