4 doctors weighed in:
What does sinusitis look like in a baby?
4 doctors weighed in

Dr. James Ferguson
Pediatrics
3 doctors agree
In brief: Depends
Before 4-6 m babies essentially have no sinus cavities.
By a year, the maxillary & ethmoid sinuses are partially developed and inflammation can be seen as creamy nasal debris that often descends down the back of the throat like a waterfall during oral exam. Xrays < 1yr are rarely helpful as the sinus cavities are often filled by normal mucous at that age rather than trapped pus seen when older.

In brief: Depends
Before 4-6 m babies essentially have no sinus cavities.
By a year, the maxillary & ethmoid sinuses are partially developed and inflammation can be seen as creamy nasal debris that often descends down the back of the throat like a waterfall during oral exam. Xrays < 1yr are rarely helpful as the sinus cavities are often filled by normal mucous at that age rather than trapped pus seen when older.
Dr. James Ferguson
Dr. James Ferguson
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