01/12/2026
👅 Why Does My Baby Have a White Tongue?
Reason 1: Milk Residue
The white coating on the center of the tongue is most likely residual milk left on the tongue seen right after or between feedings. The "milk tongue" is typically only found on the center portion of the tongue and not on the perimeter of the tongue.
What it is: When your baby drinks milk (whether breast milk or formula), some of the proteins can stick to the surface of the tongue. This can occur because the tongue cannot fully elevate against the roof of the mouth and "self-cleanse" against the palate.
How to tell if it is milk residue:
It usually looks like a thin, light coating that might be patchy.
It easily scrapes off with a clean finger or a gentle rub from a soft, wet cloth.
It doesn't usually bother your baby; they feed happily.
The fix: For many babies, no intervention is needed! Regular feeding usually washes it away eventually, and it's harmless. However...if you ALWAYS see a white tongue, this is one reason to suspect or further investigate a potential tongue-tie, which may not be allowing ideal movement and elevation of the tongue.
Reason 2: Oral Thrush
This is a fungal infection caused by an overgrowth of Candida albicans.
How to tell:
It often looks like thick, white, curd-like patches on the tongue, gums, cheeks, and roof of the mouth.
The patches DO NOT easily scrape off—if you try, you might see small, red, spots underneath.
It can sometimes cause discomfort or pain during feeding, leading to fussiness or refusing the breast/bottle.
⚠️ Important: If your ni**les are suddenly pink, shiny, burning, or painful between feeds, you may have a coinciding yeast infection that needs treatment, too.
The fix: Thrush usually requires an antifungal medication prescribed by your pediatrician. Mom and baby may need to be treated simultaneously (if breastfeeding) to prevent passing it back and forth but there is no contraindication to continue breastfeeding or pumping.
Anything that comes in contact with baby's mouth or mother's breast should be cleaned in hot/soapy water or run through the dishwasher.
If you are concerned about a persistent white tongue and baby's tongue function- 👉 Schedule a Consult with Me! 717-739-6566
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