Temperature:Babies have a less developed ability to regulate body temperature, so they may get flushed cheeks when they are too warm or exposed to hot weather.

Teething:Teething can cause increased blood flow to the face, leading to flushed cheeks.

Excitement or agitation:Babies can flush when excited, upset, or crying.

Illness:In some cases, flushed cheeks could be a symptom of an underlying illness or fever. Other accompanying signs may include fussiness, lethargy, or other visible symptoms.

Allergic reaction:In rare cases, flushed cheeks could indicate an allergic reaction to something in their environment or diet.