Strawberry moss in children is mainly caused by malnutrition, Kawasaki disease and scarlet fever. 1. Malnutrition: children have a big problem with their daily diet, which can lead to nutritional imbalance, thus leading to insufficient zinc in trace elements, which leads to the appearance of strawberry-like spots on the tongue. 2. Kawasaki disease: also called mucocutaneous lymph node syndrome, the clinical manifestations of which are congestion of the oral mucosa, protruding tongue papillae, congestion, strawberry tongue, etc. in children. 3. Scarlet fever: scarlet fever is mostly manifested as fever, thick white tongue coating, strawberry bumps, etc. It is a respiratory disease caused by hemolytic streptococcal infection. Children’s strawberry moss may also be caused by other reasons, need to go to the regular hospital for a detailed examination to determine the cause of the disease and then targeted treatment.