Genital warts look like small fleshy bumps or growths around the genital or
anal area in men and women. They may not appear until up to a year after being
infected.
Although genital warts are painless and not a threat to health, they can be a
cause for concern and can be passed to sex partners.
HPV vaccinations are offered to girls at secondary school to help protect
again genital warts.
What is human papilloma virus (HPV)?
HPV is a family of over 100 viruses that affect different parts of the body.
Some strains of HPV cause warts on the feet, hands, and other parts of the body,
while other strains are sexually transmitted and cause warts that affect skin in
the genital area -- the vulva, vagina, cervix, rectum, anus, penis, or scrotum
-- and in the mouth and throat. There are more than 30 strains of HPV that
affect the genital area as well as the mouth and throat, and depending on the
type of HPV involved, symptoms can be in the form of wart-like growths or
abnormal cell changes that can be precancerous. The strains that affect the
genital area or which can be transmitted to the mouth and throat during oral sex
are the strains of HPV that will be discussed on this page.
When can HPV lead to cancer?
HPV is an infection which many people will contract, but only a small
minority will have a lasting infection leading to cancer. This is because, in
most cases, HPV (both low and high risk types) is cleared by the immune system.
In a study of female college students, more than 90% of women infected with high
risk HPV had cleared the infection 24 months later. The average time of
infection is 4 to 20 months. Progression to pre-cancer occurs when infection
with a high risk type persists over time and when normal cells in infected skin
turn abnormal.
Infection with high-risk HPV types is a necessary but generally not a single
or sufficient cause of HPV related cancers. Other factors which may contribute
to developing cancer include smoking, nutrtional status, health of the immune
system (e.g., HIV infection), and oral contraceptive use. Oral contraceptive
users have a slightly increased risk of cervical cancer. This may be associated
with lack of condom use when on the pill and lifetime number of partners, rather
than any direct effect. There is insufficient evidence of a link to recommend
discontinuation of oral contraceptive use in women with high-risk HPV
infection.
How do I know if I have genital warts?
Like many STIs, HPV does not always have visible symptoms. However, when
symptoms do occur, warts may be seen around the genital area. In women, warts
can develop on the outside and inside of the vagina, on the cervix (the opening
to the uterus), or around the anus. In men, they may be seen on the tip of the
penis, the shaft of the penis, on the scrotum, or around the anus. Warts also
can develop in the mouth or throat of a person who has had oral sex with an
infected person.
Because there is no way to predict whether the warts will grow or disappear,
people who suspect that they have been infected should be examined and treated,
if necessary.
How are genital warts treated?
Unfortunately, no treatment can kill the virus that causes the warts. Your
doctor can remove the warts by freezing or applying chemicals. Some prescription
treatments are available for at home use. Surgery or laser therapy may be
necessary for warts that are large or difficult to treat. Still, recurrence
remains a problem. You may need to return to your doctor for more treatment.
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