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Content is anchored to trusted sources where available, but Compass has not yet been clinically reviewed. It provides general information rather than medical advice.

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Breathing and ventilation

Secretions

The fluid the airways and mouth normally make, which becomes a problem when a weak cough cannot shift it.

What it means

Everybody produces mucus and saliva all day without noticing, because swallowing and coughing clear it. When those get weaker the same normal amount starts to sit, feel thick, or catch at the back of the throat.

Why you might hear it

  • Teams use it as an umbrella word covering both chest mucus and saliva.
  • It is the word most often used when discussing clearance and suction.

People who may help

Where Compass goes into this

About this explanation

These are plain explanations of words you may come across, not advice about your own situation. Where a word matters to a decision, the question pages go into it properly, and your own team is the place to take it.