Hymen Growing Outside Of Vagina, Had Oral Sex. Will It Be Due To This ?

I went to a doctor today because I felt sth is growing around my vag( like a wart) when the doctor asked me if I had oral sex I said no, but the answer is yes, I said it before I even think about it, but I told him that my boyfriend's penis had contact around my vag( but it didn't go inside my vag, we never had sex) and he took a look at my vag and said i don't have genital wart, he said it just because my hymen is growing outside my vag( sth like that) and he also said when i reach certain age my vag is gonna change, it is true? i'm worried because i told him that i don't have oral sex, but i did told him that his penis went around my vag? what if i say yes that time? will the result be different?