Children with red cheeks may be physiological factors, but also may be the manifestation of certain diseases, such as fever, skin diseases, and so on. 1. Physiological factors: If the child is in a hot environment, the body has too much heat through the expansion of capillaries in the skin to disseminate and appear cheeks red. You need to adjust the room temperature and eat more fruits. 2. Pathologic factors: (1) Fever: Suffering from certain infectious diseases that cause the body to have a fever, especially when the body temperature rises more significantly, is likely to cause red cheeks. (2) Skin diseases: children may be due to bad environmental reasons lead to skin eczema, the beginning of the red pimples, oozing, and finally can be crusting, flaking, long-term children will feel itchy and uncomfortable. If you exclude physiological factors, you should promptly consult a doctor to clarify the specific cause, and if necessary, appropriate treatment.