1. What is the reason for blood in baby’s stool? Blood streaks in the baby\’s stool may be caused by constipation, anal fissure, enteritis and other reasons. If the baby is constipated for a long time, the feces will become hard and dry, which will irritate the skin and mucous membrane around the anus during defecation, resulting in bloodshot eyes. Anal fissure refers to a break in the skin or mucous membrane around the anus, which can also cause bloodshot eyes during defecation. In addition, if your baby suffers from enteritis or other digestive diseases, he may also have blood in his stool. 2. How to relieve blood-streaked stools in babies