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HPV
WHAT IS HPV?
HPV (human papillomavirus) is the virus that causes genital and anal warts, also sometimes called condyloma. It also causes cervical and anal cancer. There are over 100 types of HPV. The virus may cause wart-like bumps to form on the penis and/or around the rectum. The virus is passed via skin-to-skin contact from one person to another during anal sex. Warts caused by HPV are not the same warts commonly found on hands and feet, and one type of wart can not be passed from one body part (hands and feet) to another (genital area).
HPV is considered to be the most common STD in the U.S. People who have had unprotected sex with more than two partners in their lifetime have probably been exposed to the virus. It's possible to have been exposed to the wart virus months or years before warts appear, or for symptoms never to appear at all after exposure.
HOW MANY PEOPLE HAVE IT?
As mentioned above, HPV is considered the most common STD in the U.S. One study estimates that approximately 95 percent of gay men with HIV and 65 percent of gay men without HIV have HPV in their anal canals or the surrounding skin. As HPV is determined via clinical diagnosis without a confirmatory lab test, it is almost impossible to determine the exact number of people who have the virus.
WHY WORRY ABOUT HPV?
There are many different types of HPV. Most are harmless—especially the ones which cause the external warts you can see. There are a few types, classified as high risk, which can cause changes in the cells of the anus and could lead to cancer. Federal health officials are currently considering recommending yearly anal pap smears for sexually active gay and bisexual men.
WHAT ARE THE SYMPTOMS?
Not everyone who has the wart virus will have visible warts. Warts may appear as wart-like growths or may be flat and only slightly raised from the skin. They may be single or multiple, small or large. They tend to be flesh-colored or whitish in appearance. Warts usually do not cause itching or burning.
Sometimes genital warts are so small that they cannot be seen with the naked eye. This is sometimes called "subclinical HPV." This means that a person may not even know he has the type or types of HPV that cause genital warts.
WHAT IS AN HPV TEST LIKE?
A complete examination for HPV includes taking a sexual history and examining any symptoms you might be having. Sometimes, warts can be very hard to see, even for a trained clinician. Also it can be hard to tell the difference between a wart and normal bumps on the genital area. Your medical provider may use a magnifying lens called a colposcope to see smaller warts. A biopsy is not necessary for diagnosing genital warts. This would only be done if the bump is unusual-looking or discolored.
Some medical providers put acetic acid (vinegar) on your genital area to check for warts. This would cause any warts present to turn white, making them easier to see, especially if they are viewed through a colposcope. However, the vinegar can sometimes cause normal bumps to be highlighted, so this method of diagnosis is not exact.
There are no blood tests available to diagnose HPV.
HOW IS HPV TREATED?
Currently, there is no treatment to cure HPV. If you have it, it may live in your body forever. Treating the warts may possibly help reduce the risk of transmission to a partner who has never been exposed to the types of HPV you might be carrying.
There are several treatment options available for removing warts. The goal of any treatment should be to get rid of annoying symptoms. No particular treatment is best for all cases. When choosing what treatment to use, your health care provider will consider the size, location and number of warts, changes in the warts, your preference, cost of treatment, convenience, adverse effects, and their own experience with the treatments. Some treatments are done in a clinic or doctor's office; others are prescription creams that can be used at home.
Treatments done in the doctor's office include:
  • Cryotherapy: This is freezing off the wart with liquid nitrogen.
  • Podophyllin: A chemical compound to get rid of the warts. This is an older treatment and is not widely used today.
  • TCA (trichloracetic acid): Another chemical compound applied to the surface of the wart.
  • Cutting off warts: This has the advantage of getting rid of warts in a single office visit.
  • Electrocautery: Burning off warts with an electrical current.
  • Laser therapy: Using an intense light to destroy warts. This is used for larger or extensive warts, especially those that have not responded well to other treatments. Laser can be very expensive and is not available in all provider's offices.
At-home creams available by doctor's prescription:
  • Imiquimod cream (Aldara): A self-applied treatment for external genital warts. Although expensive, it is safe, effective and easy to use. Aldara boosts the immune system to fight HPV.
  • Podofilox cream or gel (Condylox): A self-applied treatment that destroys the tissue of external genital warts. It is inexpensive, easy to use and safe. The treatment period is about four weeks.
IMPORTANT: Over-the-counter wart treatments should not be used in the genital area. They have not been proven to be safe or effective.
WHAT CAN I DO IF I HAVE HPV?
Some people have only one outbreak of warts, others have recurrences over time. Genital warts are most likely to be transmitted to your sex partners when the warts are actually present, but sometimes warts are too small to see with the naked eye. Very little is known about passing subclinical HPV to sex partners.
Sexually active gay men can speak to their doctors about the possibility of obtaining an anal Pap smear if they have HPV and are concerned about cancer risk.
HOW DO I AVOID GETTING HPV?
Abstinence is the only way to completely avoid getting HPV and other STDs. If you're sexually active, using condoms consistently and correctly for anal and vaginal sex is your best bet for staying sexually healthy. However, using condoms will only reduce your risk of getting warts from an infected partner because the wart virus can be on the skin near the rectum or penis—areas not always protected by a latex condom. Also, condoms can reduce the risk of recurrent HPV in those who already have the virus.