Advertisement
question

Why does skin turn blue when cold and red when warm?

Univ. of Nev. School of Medicine, Family Medicine
Univ. of Nev. School of Medicine, Family Medicine
answer
The blood vessels in your skin constrict or narrow in cold surroundings, this reduces the amount of heat lost through your skin in an attempt to maintain your internal temperature.  Because of this the skin receives less blood and turns a bluish hue.  The opposite will happen in warm surroundings, so the blood vessels will dilate or become larger in an attempt to cool the body.  Thus the skin will appear more reddish.

Continue Learning about Healthy Skin

Eat green superfoods for healthier skin
Eat green superfoods for healthier skin
You know that staying out of the sun—and using sunscreen if you are soaking up rays—is essential to reducing your risk for skin cancer. But did you kn...
Read More
Why is skin health important?
The health of your skin affects more than just your appearance. Learn more about why your skin healt...
More Answers
Why do facial bones become more visible with age?
Why do facial bones become more visible with age? Changes in the skin can make blood vessels, tendon...
More Answers
6 foods your skin will love
6 foods your skin will love6 foods your skin will love6 foods your skin will love6 foods your skin will love
Fill your plate with nutrient-rich foods for younger-looking, glowing skin. What's the best advice for healthy, beautiful, young-looking skin? Eat up!...
Start Slideshow

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.