Is the baby of more than a month puzzled a few days defecate normal

More than a month of baby, a few days do not pull stool, there may be normal performance. Sometimes the child's milk volume is relatively small, gastrointestinal digestion is poor, there will indeed be a short period of time do not defecate, but the child's development and feeding are normal. If the child does not defecate, do not feed, but also often crying, it is abnormal.