I'm 16 and I'm not sexually active and I have a small pea sized bump on my vagina. (the outter part) and it doesn't hurt or itch and it's the same color as my skin. Someone please help, I'm having a nervous break down here!

Your vagina is internal, is the "tube." Your bump is probably somewhere on your vulva or labia.

Does it hurt? Has it changed size during the past weeks? Does it have a white head? Do you shave down there?

Your vagina is internal, is the "tube." Your bump is probably somewhere on your vulva or labia.

Does it hurt? Has it changed size
during the past weeks? Does it have a white head? Do you shave down there?

I just found it. It doesn't hurt. It's the size of a pea. I rarely shave down there. And no white heads.

I just found it. It doesnt hurt. It's the size of a pea. I rarely shave down there. And no white heads.
If it changes in any way, have your doctor check it. Do you get female checkups yet?

It could be a Bartholin cyst. They're caused by blocked glands close to the vagina. I've had a couple, and they're generally not harmful. However, they can get infected or get bigger and painful if not treated. Mine went away on their own. Taking a hot bath can help them loosen up and drain on their own.
I'm not saying that's definitely what it is, but it's a possibility. As Wondergirl said, go to your doctor if anything changes.