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Why is my baby's mucus yellow?

Published in Baby Health 2 mins read

Your baby's mucus is likely yellow because it has been sitting in their nose or sinuses for a while.

Understanding Yellow Mucus in Babies

Yellow mucus in babies can be alarming for parents, but it's often a normal part of a cold's progression. Here's a more detailed look at why it happens:

  • Stagnant Mucus: According to research, snot can turn yellow when it has been sitting in your baby's nose or sinuses for a while.
  • Cold Progression: Snot can also turn yellow as a cold progresses into the thick snot phase. The change in color and consistency happens due to the accumulation of cells and proteins in the mucus.

Is Yellow Mucus Always a Sign of Infection?

Generally, yellow mucus alone does not mean that your baby currently has a sinus infection. However, if the yellow mucus is accompanied by other symptoms, further evaluation may be needed.

When to Consult a Doctor

Consult a doctor if your baby experiences any of the following symptoms in addition to the yellow mucus:

  • Fever
  • Difficulty breathing
  • Persistent cough
  • Irritability or fussiness
  • Poor feeding

These symptoms may indicate a more serious condition requiring medical attention.

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