Volunteer for NIAID-funded clinical studies related to human papillomavirus and genital warts on ClinicalTrials.gov.
In women, genital warts occur on the outside and inside of the vagina, on the opening to the uterus (cervix), or around the anus.
In men, genital warts are less common. If present, they usually are seen on the tip of the penis. They also may be found on the shaft of the penis, on the scrotum, or around the anus.
Rarely, genital warts also can develop in your mouth or throat if you have oral sex with an infected person.
Like many sexually transmitted diseases, genital HPV infections often do not have signs and symptoms that you can see or feel. One study sponsored by NIAID reported that almost half of women infected with HPV had no obvious symptoms.
If you are infected but have no symptoms, you can still spread HPV to your sexual partner and/or develop complications from the virus.
Last Updated February 07, 2007
Last Reviewed October 21, 2010