If a six-year-old girl has blood in her stool, mainly consider hemorrhoids, rectal polyps and other causes, as follows: 1. Hemorrhoids, children have blood in the stool, the blood is relatively bright red, often accompanied by dry stools, difficult to relieve. When relieving stool, there is pain, especially more intense pain at the anus. When performing an anal finger examination, the child will experience pain and the presence of external hemorrhoids can be seen with the naked eye. This situation only requires timely treatment of hemorrhoids, the child’s condition can be improved; 2, rectal polyps, the reason why some children appear to have blood in the stool, often due to multiple polyps in the rectum, often with a family history, or like to eat more meat, etc., need to do a timely colonoscopy. Colonoscopy can not only clarify the diagnosis, but also the treatment treatment at the same time.