3 doctors weighed in:

Why is my snot cold when I blow my nose?

3 doctors weighed in
Dr. Jon Fishburn
Ophthalmology
1 doctor agrees

In brief: Rhinorrhea

The mere act of inhaling and exhaling cools nasal secretions, therefore when you blow your nose the "snot" is cooler than your body temperature.
Also, the colder the outside temperature is, the colder your nasal secretions are.

In brief: Rhinorrhea

The mere act of inhaling and exhaling cools nasal secretions, therefore when you blow your nose the "snot" is cooler than your body temperature.
Also, the colder the outside temperature is, the colder your nasal secretions are.
Dr. Jon Fishburn
Dr. Jon Fishburn
Thank
Dr. Sahba Ferdowsi
General Practice

In brief: It has no capillarie

It is not attached to your body receiving blood flow to keep it warm. And air passim through the nostril is cooling it.

In brief: It has no capillarie

It is not attached to your body receiving blood flow to keep it warm. And air passim through the nostril is cooling it.
Dr. Sahba Ferdowsi
Dr. Sahba Ferdowsi
Thank
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