There are many reasons why children’s cheeks are red on both sides, and the common reasons are temperature stimulation, emotional fluctuations, fever, skin diseases, etc. 1. Temperature stimulation: when the environmental temperature is too high, the capillaries of the face expand to dissipate heat, so it will be manifested as a reddish color. 2. Emotional fluctuations: Emotional fluctuations will lead to nerve excitement and accelerate blood flow, so it will be manifested as redness, especially in nervousness, anger and other emotions. 3. Fever: feverish babies have too much heat in their bodies, which will be dissipated by expanding the skin capillaries, so the symptom of redness will appear. 4. Skin diseases: allergic dermatitis, urticaria, eczema and other diseases will appear skin inflammatory lesions, the skin on both sides of the cheeks look red. There are many reasons why children’s cheeks are red on both sides. If the redness in the cheeks does not subside after a period of time, it is recommended to go to the hospital in time to find out the cause of the problem.