Usually, a doctor or nurse can diagnose genital warts just by looking at them, and sometimes using a magnifying lens. They may ask some questions about your sexual life and partners to try and pinpoint where and when you contracted HPV, but this may not be possible since you can be asymptomatic for a long time. They will also look inside your anus or vagina to check if you’ve developed any internal warts. This can all be carried out at a hospital. [popover id=ref5]