Occult blood in the stool in children may be related to diet, food allergies, and bacterial enteritis. 1. Diet: If children eat animal offal or animal blood products, it can also cause false positive occult blood. 2. Food allergy: The most common cause considered is food allergy, such as milk protein, eggs, peanuts, etc.. Allergy will produce irritation to the mucosa of the digestive tract, which is more likely to cause congestion of the mucosa of the gastrointestinal tract and occult blood in the stool. 3. Bacterial enteritis: If the child’s diet is not clean and other intestinal infections, especially bacterial enteritis, the intestinal mucosa will be broken, there will be red blood cells in the stool, there can also be fecal occult blood. Occult blood in the stool of children can also be seen in other causes, it is recommended to follow the doctor’s instructions for further examination, with the help of the doctor to clarify the cause, and targeted treatment or therapy.