green mucus
This can happen during respiratory infections as immune cells and other substances enter the mucus.
It does not automatically mean you need antibiotics.
Brown mucus
Brown or rust-colored mucus can sometimes reflect old blood, inhaled particles, or exposure to smoke and pollutants.
Persistent brown mucus should be evaluated, particularly in smokers.
Pink or bloody phlegm
Blood in mucus deserves more attention.
A small streak after forceful coughing can sometimes occur because irritated airways or the throat bleed slightly.
But repeated blood, significant amounts of blood, or coughing up blood together with chest pain or breathing difficulty requires prompt medical attention.
Morning Phlegm: Why Is It Often Worse After Waking Up?
Many people notice more mucus first thing in the morning.
There are several possible reasons.
While you’re sleeping, you’re not actively clearing your throat or coughing as often. Mucus can therefore accumulate.
Postnasal drainage can also continue while
