A division of the National Institute of Health defines constipation as having a bowel movement fewer than three times a week. Stools are usually hard, dry, small in size and difficult to eliminate. Children with constipation usually either have very large hard stools or hard pellet like stools. Bowel movements are infrequent and often painful.

The American Academy of Pediatrics outlines normal frequency of bowel movements for children.

Learn more about Diagnosing Constipation