Baby constipation poop blood can be seen in functional constipation, anal fissure or intestinal polyps and other diseases, the specific treatment needs to be the cause of the treatment, such as constipation need to use the open plug, oral laxatives (such as lactulose) and other treatments. 1. Functional constipation: for this kind of baby due to constipation, there can be dry stools, defecation difficulties, in the process of defecation can occur intestinal mucosal damage, the phenomenon of blood in the stool. Treatment should be used as appropriate to relieve the symptoms of constipation, at the same time, oral microecological agents (such as Clostridium casei bacterial powder) to regulate the intestinal flora, for the baby has been added to complementary foods can increase the intake of dietary fiber and water. 2. Intestinal polyps: a rare disease in pediatrics, clinical phenomenon of blood in the stool, some babies can be combined with constipation, usually anus or proctoscopy can assist in confirming the diagnosis of such babies need to be treated with surgical resection. 3. Anal fissure: clinical phenomenon of blood in the stool, often accompanied by constipation, defecation can be severe pain in the perianal area, the baby may refuse to defecate, this kind of baby can use anus warm water sitz bath, daily can also increase dietary fiber intake and exercise, etc. The above drugs should be directed by a physician. All of the above medications should be used under the guidance of a physician, and it is recommended to consult a specialist for evaluation and treatment.