Because of hormons. When you reach puberty, hair starts growing under your arms... and other "unpleasant" places.
Hey mum, I have hair under my arms :O
you have hair under your arms because god made it that way everyone has them it's part of nature.
Humans have hair under their arms to help regulate body temperature and to reduce friction between the skin.
We grow hair under our arms as a natural way for our bodies to regulate temperature and protect the skin in that area.
Hair under our arms serves as a natural protection for the skin, helping to regulate body temperature and reduce friction.
About 1-2 years after you start puberty, you start to grow hair under your arms and around your genitals.
Just cut it with scissors or shave it
yea he showed me once!!
Hair grows everywhere on your body except on places like your lips and your eyes.......
You have hair under your arms because that means your changing in to a man/women or your just a early puberty bloomer. And don't worry it's nothing big to worry about you just need to shave your arms!
They do, but it's not as obvious as it will be in a few years
Most women have at least some hair under her arms but by no means all women. Some will only grow armpit hair in later life and a few will never grow it. There is no rule about when or if the hair might grow.It seems that almost every woman that has hair under their arms will go to a great deal of trouble to remove it. Creams, razors, tweezers, wax and even worse things are used to make the hair go away. If you are 16 and have no hair under your arms, you are probably the envy of most other women. Maybe the hair will start to grow but at least for the time being, make the most of not having any to worry about.