Infant defecation sound like diarrhea, may be a normal physiological phenomenon, but also may be related to diarrhea and other pathological factors, specific analysis is as follows: 1. Physiological phenomenon: infant defecation sound like diarrhea, parents need to observe the shape and color of the stool is normal, if the stool is normal and good mental state may be a lot of air inhalation during breastfeeding. 2. Pathological factors: If the stool has a loud noise, and the shape is relatively thin, egg-shaped or accompanied by mucus, may be related to diarrhea, diarrhea is also divided into infectious diarrhea and non-infectious diarrhea, infectious diarrhea, including bacterial, viral infections, non-infectious diarrhea, including the drinking of lactose intolerance, protein allergies and other factors. The baby’s bowel movements with a loud sound like diarrhea may also have other reasons, it is recommended to go to the hospital in a timely manner to conduct relevant examinations, clear causes of the symptoms of the active treatment.