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Why Does My Baby Have White in His Mouth?

Published in Baby Health 2 mins read

The white in your baby's mouth could be due to several reasons, the most common being oral thrush or milk residue.

Possible Causes of White in Your Baby's Mouth

Here's a breakdown of the potential causes:

  • Milk Residue: This is usually harmless. After feeding, some milk might remain in your baby's mouth, appearing as a white coating on the tongue. It can usually be wiped away easily with a clean, damp cloth.

  • Oral Thrush: This is a common yeast infection in babies caused by Candida albicans.

    • Appearance: Thrush typically presents as white or cream-colored patches on the tongue, inner cheeks, gums, and roof of the mouth. Unlike milk residue, these patches are difficult to wipe away, and attempting to do so may cause slight bleeding or irritation.

    • Symptoms: Besides the white patches, your baby might be fussy, have difficulty feeding, or show signs of discomfort.

    • Causes: Thrush can develop when the balance of yeast in your baby's mouth is disrupted. This can occur after antibiotic use (in the baby or breastfeeding mother), or simply due to a developing immune system.

Prevention and Treatment

Here are some steps you can take:

  • For Oral Thrush: Consult your pediatrician. They may prescribe an antifungal medication for your baby.
  • Cleanliness is Key:
    • If you formula-feed your baby or use a pacifier, thoroughly clean the nipples and pacifiers in hot water or a dishwasher after each use. This helps prevent reinfection if yeast is present.
    • If you are breastfeeding, speak with your doctor, as you might need treatment as well.
  • Good Hygiene: Wash your hands frequently, especially before and after feeding your baby.

When to See a Doctor

It's crucial to consult your pediatrician if you suspect your baby has thrush, or if the white patches don't easily wipe away. They can accurately diagnose the cause and recommend the appropriate treatment.

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