Two-year-old baby constipation with blood first need to identify the cause, and then targeted treatment. Common causes include anal fissure caused by constipation, intestinal infectious diseases, inflammatory bowel disease, etc., according to the cause of the targeted treatment, including dietary adjustments, medication and so on. 1. Anal fissure due to constipation: If a two-year-old baby is constipated, plus if the stool is dry, coarse and hard, there may be blood in the stool during defecation. Generally need to give the baby drink more water, eat more dietary fiber-rich foods, serious cases can be timely medication such as bacillus subtilis bacillus granules to improve the function of the digestive system and the symptoms of constipation. 2. Intestinal infectious diseases: If the baby has viral enteritis or bacterial enteritis, it may cause intestinal mucosal damage, which may result in blood in the stool, and then medication should be given according to the specific infection. 3. Inflammatory bowel disease: when there is ulcerative colitis, there will also be blood in the stool, if necessary, under the guidance of a doctor to improve enteroscopy to clarify the pathological types of disease, and then targeted medication, such as the combination of bacterial infections, the application of antimicrobial drugs such as cefixime. As you can see, the two-year-old baby constipation with blood need to pay close attention to the baby whether the other symptoms of discomfort, if there is discomfort, should promptly seek medical attention to clarify the cause of the disease, and then under the guidance of the doctor for treatment. Drugs need to be used under the guidance of a doctor.