1. Symptoms of constipation in babies: Constipation in babies means that babies have difficulty defecating, the frequency of defecation is reduced, or defecation is not smooth. Symptoms include: long intervals between defecation, dry and hard stools, painful expressions during defecation, and even anal bleeding. If the baby does not have a bowel movement for three consecutive days, parents need to pay attention. 2. Causes of constipation in babies 1. Improper diet: Breastfed babies are prone to constipation due to improper mother’s diet; artificially fed babies may be caused by the lack of dietary fiber in formula milk powder. 2. Lack of exercise: Newborns spend most of their time sleeping, and little exercise can easily lead to constipation.