What causes noses to turn blue?

Answer

Discoloration of the nose may be caused by hayfever, respiratory infection, poor circulation or exposure to cold. What all of these causes have in common is a disruption to the nose's supply of oxygen.

The hemoglobin in blood is what lends skin its normal, warm color. When blood vessels constrict due to low temperature or poor circulation, or when oxygen is at a premium due to difficulty breathing, parts of the body turn pale and then blue. This is because the oxygen-carrying hemoglobin is not getting to the area. Blue coloration may also be caused by bruising of the nose due to bleeding under the skin. One unique cause of blue nose is Raynaud's, a disorder that is characterized by sudden attacks of vasospasm, a narrowing of the blood vessels.

Q&A Related to "What causes noses to turn blue?"
Blue Nose has 9 causes including bruising, cold weather, fracture to the basilar bone
http://www.chacha.com/question/what-causes-a-blue-...
Rosacea is an incurable skin disorder marked by redness on the forehead, cheeks and nose. The cause of this condition is unknown, but damaged blood vessels and inflamed papules (skin
http://www.ehow.com/list_6929145_causes-red-nose_....
my blue nose friends are small cuddly toys from the company carte blanche. They are in the tatty teddy series and you can find them in most clinton cards stores and selected W H Smiths
http://wiki.answers.com/Q/Who_are_the_blue_nose_fr...
1 Dive in Ciceros Strait and go to cross rift. You should get a cutscene of a tiger shark attacking an albino bottle nose dolphin. 2 Dive down into the cross rift and use the pulsar
http://www.wikihow.com/Befriend-the-Bottle-Nose-Do...
Top Related Searches
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com