Newborns with blood spots in the stool may be caused by milk protein allergy, bacterial enteritis, intussusception and other reasons. 1. Milk protein allergy: common in allergic newborns, due to milk protein allergy, causing diarrhea and intestinal wall damage, it may show blood spots in the stool, may also be accompanied by abdominal pain, vomiting and other symptoms. 2. Bacterial enteritis: If the hygiene environment of the newborn is poor, or there is poor hygiene in formula feeding, it may lead to bacterial enteritis. Under the stimulation of inflammation, the intestinal mucous membrane is damaged, which may cause blood spots in the stool, and may be accompanied by abdominal pain, diarrhea and other symptoms. 3. intussusception: the disease usually refers to a section of the intestinal tube into the neighboring intestinal lumen, is likely to induce intestinal obstruction, may show blood spots in the stool, may also be accompanied by vomiting, a burst of crying performance. Blood spots in the stool of newborns may also be caused by other reasons. It is recommended to seek medical advice as soon as possible, and after diagnosing the causative factors through relevant examinations, treatment will be guided by the doctor.