they have treatments available such as the cream and freezing them.Yes you can spread the warts if you touch them and then touch other area's of your body just be mindful though to wash your hand as it does help to keep them from spreading.Also genital warts or hpv have been studied and link to cervical cancer so remember to get a pap smear twice a year
i dont think it can, i have ever touched my genital wart but i never had any wart growing on my hands...if we are talking about skin warts (not genital) yes it can spread anywhere, but for genital warts it can grow in your genital areas and your mouth area (basically skin area where it's not really dry)