Blood in stool is not necessarily caused by viral infection, it may be a physiological condition or a manifestation of certain diseases, including infectious blood in stool, allergic blood in stool, intussusception, intestinal polyps, etc. Parents should take their children to the hospital for prompt treatment. Parents should bring their children to the hospital for treatment. Physiological conditions, i.e., when the baby’s stool is similar to blood-like material, it may be that the child has eaten red food today, such as red dragon fruit, etc., and red material will appear in the stool, if this is the case, parents do not have to worry about it, and can observe the color of the stool for several times, and can go to the hospital to improve the fecal occult blood test to clarify whether it is really blood in the stool. Pathological conditions include severe viral or bacterial infections that can cause blood in the stool, accompanied by other symptoms such as vomiting; allergic enteritis can also cause blood in the stool, usually the child will have a history of allergy, which is caused by eating something that causes allergy; intussusception can also cause blood in the stool, which can be accompanied by abdominal pain, vomiting and other manifestations; intestinal polyps can cause blood in the stool, which need to be clearly diagnosed under the enteroscopy. Therefore, when your baby has blood in the stool, after eliminating the physiological causes, you must consult the hospital in time to find out the cause of the disease and carry out the treatment under the guidance of the doctor.