Causes of children’s mouth rot more reasons, can be analyzed from the physiological factors, pathological factors, the specific cause of the disease should also go to the hospital in time to confirm the examination. 1. Physiological factors: children with excessive secretion of saliva, not cleaned up in time, stimulate the mucous membrane around the lips so that the local skin damage. At the same time, if the child has the bad habit of licking lips, it may damage the surrounding skin or oral mucosa, resulting in the child’s rotten mouth. 2. Pathological factors: if a child’s body B elements, zinc elements, or suffering from diabetes, anemia, etc., the body’s resistance to decline, a variety of pathogens in the body breeding, so that the integrity of the skin mucosa is destroyed, resulting in children’s mouth rotten. When a child’s mouth is rotten, it is recommended to go to the hospital in time for examination and diagnosis, to clarify the cause of the disease, and to carry out targeted treatment under the guidance of a professional physician in conjunction with the child’s own situation, so as to avoid aggravation of the condition, which will affect the child’s healthy growth and development.