Final answer:
Bloody stool in children can indicate various health conditions such as gastrointestinal infections, food poisoning, inflammatory bowel disease, or colorectal cancer.
Step-by-step explanation:
Infections caused by bacteria or viruses like C. jejuni, Salmonella, Shigella, or E. histolytica can lead to the presence of blood in the stool. Additionally, disorders of the developing fetus or complications during birth can also cause bloody stools. In some cases, newborns may pass meconium (the first stool) in utero, which can lead to complications. If a child experiences bloody stool, it is important to consult a physician for proper diagnosis and appropriate treatment.