Occasional blood in stools of children may be caused by constipation, intestinal polyps, acute enteritis, etc. 1. Constipation: Some children do not consume enough water, eat dry food or have a long bowel cycle, which may cause excessive dehydration of the feces in the rectum and make the feces dry and constipated, thus leading to constipation. When the child is forced to defecate, it may cause anal injury and blood in the stool. 2. Intestinal polyps: this condition is usually related to heredity, some children have related diseases, and may grow polyps in childhood, when the polyps are damaged or infected, they are easy to rupture and bleed, resulting in blood in stool. 3. Acute enteritis: children accidentally consume unclean food, which may cause their intestines to be attacked by pathogenic bacteria and have inflammatory reactions, injury, etc., and the intestinal mucosal capillaries are prone to rupture and bleed, resulting in blood in the stool. If parents observe that their children have similar symptoms, they should pay attention to it and bring their children to the hospital for examination and treatment as soon as possible.