Baby stool often dry reasons are: a. dietary habits, baby partiality, picky eating, vegetables, fruits eat unbalanced, as well as drink less water will lead to dry stool. Second, genetic factors, if the parents have dry stool, the baby will also be affected by genetic factors, resulting in dry stool. Third, the mental factors, once dry stool situation occurs, the baby has, for example, similar to anal fissures occur, have painful memories will reject defecation, resulting in dry stool. Fourth, the immune function of small infants and young children is poor, after the impact of some drugs, the intestinal flora is damaged, which will also lead to dry stools. These are some of the common clinical causes of dry stools in babies.