Should I be worried?

Anybody ever noticed a small nodule under the skin on the labia majora? I have never noticed it before until tonight. It’s right on the edge of the inside of the labia. It’s very small, I don’t even know what to compare it to in size, but maybe like half a pencil eraser? If that. I looked with a mirror and you can’t see it, like it doesn’t stick out, I only knew it was there by feeling for it. And it’s not noticeable color wise unless you spread the skin thin, then it’s white. No pain, no itching, no weird smell, no open sore, no unusual discharge. And this is the only one I’ve felt, I don’t think there’s anymore. Any ideas????