There is no normal standard for how many times a day a 15-day-old newborn can have a bowel movement, it varies from person to person and is related to the feeding method, etc. It is possible that it may happen once or a few times or a dozen times. Just 15 days of newborns, due to the gastrointestinal function is not yet well developed, so the number of bowel movements will often be more, especially breastfed newborns, because breast milk itself contains more moisture, newborns in the breast milk after the number of stools will be more, generally 5 to 8 times a day stools, there may be more than a dozen times stools. If the baby is formula fed, the number of stools will be relatively less, maybe 1~4 times a day. No matter how many times a day a 15-day-old newborn baby has a bowel movement, as long as the color of the stool is normal, the mental state is normal, and there are no other uncomfortable symptoms, there is no need for special treatment. If there is poor feeding, crying and restlessness, etc., need to consult a doctor in time.