Skip Nav
Serena Williams
Women With Bigger Busts Will Rejoice Over Serena Williams's Instagram Announcement
Halloween
Blast Fat and Sculpt Your Arms, Shoulders, and Back With This At-Home Workout
Career
Why Quitting the Rat Race to Become a Yoga Teacher Is the New Millennial Job of Choice

Why Are Boogers Green?

It is not so much the snot which is green as the phlegm component, and this is only when it is infected. Healthy phlegm is not really green.

The phlegm becomes green in the presence of infection (bacteria) due to the large numbers of white blood cells present, which make their way through the airway walls to combat the infection. White blood cells also give pus a whitish-green color, so you'd think mucus would be white but it's snot. (Get it? Sorry, but I couldn't resist.)

There's more to it. Many of the common bacteria associated with humans have color. Staphylococcus aureus is a golden yellow, and Pseudomonas pyocyanea is a shade of blue. The green color of snot comes from the mixture of the yellow and blue. Interesting, yet gross, and hopefully inspirational to stay vigilant about not catching a cold as this snotty season slowly comes to an end.

Around The Web
Join The Conversation
suzanne suzanne 9 years
Boogers... green... mucous... snot... :BARF:
redsox26 redsox26 9 years
wow. random, but interesting!
Does the Five-Second Rule Really Apply?
How to Protect Against West Nile Virus
How to Prevent Getting a Cold When Flying
How-To: Make Fake Slime For Halloween
Why You Need Lots of Bacteria in Your Stomach
Tongue Piercing May Cause Brain Abscesses
When to Replace Household Items

POPSUGAR, the #1 independent media and technology company for women. Where more than 75 million women go for original, inspirational content that feeds their passions and interests.

From Our Partners
Latest Fitness
X