What causes erythema (redness) of the cheeks in a 9-month-old infant?

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Last updated: April 10, 2025 • View editorial policy

From the Research

Red cheeks in a 9-month-old baby are often due to teething, as the process can cause increased blood flow to the face, and this is typically normal and temporary. The most common causes of red cheeks in infants include:

  • Teething: as the process can cause increased blood flow to the face
  • Heat exposure: ensuring the baby is dressed appropriately for the temperature and stays hydrated can help
  • Mild fever: monitoring the baby's temperature and seeking medical attention if it's high
  • Drooling rash: keeping the area clean and dry can help
  • Skin conditions like eczema: applying a thin layer of fragrance-free moisturizer if the skin appears dry can help It's essential to note that if the redness is accompanied by a high fever, significant discomfort, or other concerning symptoms like a rash spreading beyond the cheeks, you should contact your pediatrician 1, 2, 3, 4. For teething discomfort, you can offer a cold teething ring or gently massage the gums with a clean finger. For heat-related redness, ensure your baby is dressed appropriately for the temperature and stays hydrated. For skin irritation, keep the area clean and dry, and apply a thin layer of fragrance-free moisturizer if the skin appears dry. Most cases of red cheeks are harmless and resolve on their own, but persistent redness or additional symptoms warrant medical attention.

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.