What Could White Discharge On Vaginal Lips Suggest?

hi,I've been getting a whitish coloured 'cheese' I guess you could say on the inside of the lips to my vagina. I'm only 17, and i can't really remember not having it when beginning to go through puberty. It doesn't seem to smell, and I can just scrape it off. There isn't much, but it's usually there after a day when I go to shower. I don't really have any other symptoms, occasionally I get an itchy sensation, but really rarely. I'm just wondering if this is normal? I'm not and haven't been sexually active, it's just like a daily build of yeast, but i'm wondering if this is normal? I've never thought to see anyone, it hasn't really ever been an issue or a problem. Just recently got me thinking.thank you for your time.