I have a little bump on my labia majora. note, I am also a virgin. so I am kind of sure it can't be an STD. I never ever had any sexual contact with anyone. it doesn't hurt & I can walk & sit down right, I tried to pop it but it is too hard or something, I don't know, it just doesn't pop yet. what could it be? I have had one pimple before & it was like that, it was hard at first but later on it's own almost, I squeezed it just a tiny bit & the bump popped