Hi,my Daughter Is 12 Years And 2 Months Ago Approximately

hi,my daughter is 12 years and 2 months ago approximately i took her to the doctor because some warts appear on her cervical part outside they prescribed condylox the questions is ,is this means the warts show up because she had sex,or is normal the doctor told me no is not that ,but he didn;t why it sow up those warts on her parts can u help .