What Does It Mean When My Snot Is Yellow

When your snot turns yellow it means your illness is progressing normally.

The texture is likely drier and thicker than it used to be as well. When it is caused by bacteria you may notice yellow or green phlegm nasal congestion postnasal drip and pressure in your sinus cavities. You might have heard that yellow or green mucus is a clear sign that you have an infection but despite that common misperception the yellow or green hue isn t due to bacteria. The yellow color comes from the cells white blood cells for example rushing to kill the offending germs.

When your mucus traps potential illness causing debris like pathogens that cause the common cold or flu your immune system. Your mucus usually turns yellow when your body is fighting an infection.