Baby’s stools are dry before and dilute after belonging to the manifestation of constipation, may be dietary reasons, intestinal dysfunction, anal stenosis and other reasons. 1. Dietary reasons: when the baby’s diet is too little or the food contains too much pasta, meat, fiber content is too small, will cause the stool before the dry after dilute, should be adjusted to the amount of diet and dietary structure. 2. Intestinal dysfunction: the baby’s gastrointestinal function is not yet perfect, before the formation of defecation reflex, constipation can occur, so the baby should be allowed to develop a good habit of regular defecation. 3. Anal stenosis: when there is anal stenosis and other physiological structural abnormalities, can also lead to dry stools after dilution, if necessary, the feasibility of expanding the anus treatment. The baby’s stool is dry and then dilute, there may also be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.