Children with positive fecal occult blood need to be specifically analyzed, may be caused by food or intestinal diseases. 1. Food: children with positive fecal occult blood, if there are no red blood cells or the number of red blood cells is normal, this may be due to eating a bit of food containing chlorophyll, or iron containing food, which can lead to positive fecal occult blood, at this time there is no need for special treatment. 2. Intestinal diseases: If the stool is positive for occult blood, and there is an increase in red blood cells, accompanied by an increase in white blood cells, this may be caused by bacterial enteritis and other intestinal diseases, and it is necessary to improve the culture of the stool, blood routine to further understand the condition. If the stool is black or with blood, we need to consider the possibility of gastrointestinal bleeding. Therefore, positive fecal occult blood should be analyzed by a doctor to determine the cause of the disease.