White patches on a child’s belly may be caused by localized infections or trauma, vitiligo, or nevus without pigmentation. 1. local infection or trauma: local skin infection or trauma after poor healing, there may be loss of pigmentation phenomenon, which led to the child’s belly white. 2. Vitiligo: Vitiligo is a relatively common skin disease, usually associated with genetic factors, trauma or viral infections and other reasons, the main symptom is the appearance of white patches on the skin. 3. a pigmented nevus: a pigmented nevus belongs to a congenital developmental abnormality, the main manifestation is that the affected skin will be the surrounding skin color to be lighter. Children with white spots on the belly may also be related to other diseases, it is recommended to go to the regular hospital in a timely manner, a clear diagnosis, in accordance with the recommendations of the specialist physician targeted treatment.