The common causes of blood in stool for little girls include gastrointestinal bleeding, hemorrhoids and so on, which can be treated by improving lifestyle, conservative treatment with medication and surgery. 1. Gastrointestinal bleeding: If the upper gastrointestinal bleeding is easy to appear with blood in the stool, usually the stool will show dark red or black. You can choose to take acid-suppressing drugs such as omeprazole and cimetidine and vasoconstriction-promoting drugs such as octreotide under the guidance of your doctor for treatment. 2. Hemorrhoids: Hemorrhoids are one of the common causes of blood in the stool, after a clear diagnosis, for relatively minor patients, you can fill the anus with hemorrhoidal suppositories, hemorrhoidal ointment, such as Ma Yinglong hemorrhoidal ointment, etc. for treatment. And need to adjust the diet, avoid spicy and stimulating food, control the time of defecation, etc., can promote the recovery of the condition. If necessary, surgery is also needed for treatment. Little girls with blood in the stool, it is recommended to consult a doctor in time, a clear diagnosis, and take standardized treatment measures in time. The above drugs need to be used in accordance with medical advice.