GENITAL WARTS
source:
http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0001889/
source:
http://en.wikipedia.org/wiki/Genital_wart
Causes, incidence, and risk factors
The virus that causes genital warts is called human papilloma virus (HPV). More than 70 different types of HPV exist.
Several types of HPV cause genital warts, which may be found on the penis, vulva, urethra, vagina, cervix, larynx, and around and in the anus.
Other types of HPV cause common or flat warts on other parts of the skin, such as the hands. However, warts on the hands or other parts of the body do not cause genital warts.
HPV infection around the genitals is common, although most people have no symptoms. Even if you do NOT have symptoms, however, you must be treated to prevent complications and spreading the condition to others.
In women, HPV can invade the walls of the vagina and cervix. These warts are flat and not easy to see without special procedures.
Certain types of HPV can lead to precancerous changes in the cervix, cervical cancer, or anal cancer. These are called high-risk types of HPV.
The following are important facts about how HPV and genital warts can be spread:
HPV infection is passed from one person to another through sexual contact involving the skin of the anus, mouth, or vagina, or the mucus membrane. It is possible for genital warts and HPV to spread, even when no warts can be seen.
You may not see warts for at least 6 weeks to 6 months after becoming infected with HPV. It may also take longer, even years, so when you first notice genital warts, it does not mean that you or your partner has had sexual contact with someone outside of your relationship.
Not everyone who has been exposed to the HPV virus and genital warts wil develop them.
The following factors put you at higher risk for getting genital warts, having them spread more quickly, having them return, or having other complications of HPV:
Having multiple sexual partners
Not knowing whether someone you had sex with had STIs
Becoming sexually active at an early age
Using tobacco and alcohol
Having stress and other viral infections (such as herpes) at the same time
Being pregnant
Having an immune system that does not work well, such as during cancer treatment or AIDS
If a child has genital warts, you should suspect sexual abuse as a possible cause.
Symptoms
Genital warts can be raised or flat, and are usually flesh-colored. They may appear as cauliflower-like growths. Sometimes they are so small and flat that they cannot be seen with the naked eye.
Common places to find genital warts:
Females most often have warts inside or around the vagina or anus, on the skin around these areas, or on the cervix.
Males most often have warts on the penis, scrotum, groin area, or thighs, as well as inside or around the anus in those who have anal intercourse.
Both males and females may have warts on the lips, mouth, tongue, palate, or throat (larynx)
Other symptoms are rare, but may include:
Increased dampness or moisture in the area of the growths
Increased vaginal discharge
Itching of the penis, scrotum, anal area, or vulva
Vaginal bleeding, with or after sexual intercourse
Signs and tests
Flesh-colored to white, flat or raised, single or clustered warts may be seen anywhere on the genitals.
In women, a pelvic examination may reveal growths on the vaginal walls or cervix. Magnification (colposcopy) may be used to see lesions that are invisible to the naked eye. The tissue of the vagina and cervix may be treated with acetic acid (dilute vinegar) to make the warts visible.
A Pap smear may note changes caused by HPV. Women with these types of changes often need more frequent Pap smears for a period of time.
An HPV DNA test can identify whether you have a high-risk type of HPV that is known to cause cervical cancer. This test may be done:
As a screening test for women over age 30
In women of any age who have a slightly abnormal Pap test result
Treatment
Genital warts must be treated by a doctor. Do NOT use over-the-counter remedies meant for other kinds of warts.
Your doctor may treat genital warts by applying a skin treatment in the office. Or, the doctor may prescribe a medication that you apply at home several times per week. These treatments include:
Imiquimod (Aldara)
Podophyllin and podofilox (Condylox)
Trichloroacetic acid (TCA)
Surgical treatments include:
Cryosurgery
Electrocauterization
Laser therapy
Surgical excision (cutting them out)
If you develop genital warts, all of your sexual partners must be examined by a health care provider and treated if genital warts are found.
After your first treatment, your doctor will schedule follow-up examinations to see if the warts have returned.
Women who have had genital warts, and women whose partners have ever had genital warts, should have Pap smears at least once a year. For warts on the cervix, women may need to have Pap smears every 3 to 6 months after the first treatment.
Women with precancerous changes caused by HPV infection may need further treatment.
Young women and girls ages 9 - 26 shoul be vaccinated against HPV.
Expectations (prognosis)
Most sexually active young women become infected with HPV. In many cases, HPV goes away on its own.
Most men who become infected with HPV never develop any symptoms or problems from the infection. However, they can pass it on to current and sometimes future sexual partners.
Even after you have been treated for genital warts, you may still infect others.
Certain types of genital warts increase a woman's risk for cancer of the cervix and vulva.
Complications
Some types of HPV have been found to cause cancer of the cervix and vulva. They are the main cause of cervical cancer.
The types of HPV that can cause genital warts are not the same as the types that can cause penile or anal cancer.
The warts may become numerous and quite large, requiring more extensive treatment and follow-up procedures.
Prevention
Total abstinence is the only foolproof way to avoid genital warts and other infections that are spread through sexual contact (STIs). You can also decrease your chance of getting an STI by having a sexual relationship with only one partner who you know is disease-free.
Male and female condoms cannot fully protect you, because the virus or warts can be on the skin. Nonetheless, condoms reduce your risk and you should still use them at all times. HPV can be passed from person to person even when there are no visible warts or other symptoms. See: Safe sex
Stop smoking.
Two vaccines are available that protect against four of the HPV types that cause most cervical cancer in women. The vaccine is given as a series of three shots. It is recommended for girls and women ages 9 to 26.
Epidemiology
Genital HPV infections have an estimated prevalence in the US of 10–20% and clinical manifestations in 1% of the sexually active adult population.[16] US incidence of HPV infection has increased between 1975 and 2006.[16] About 80% of those infected are between the ages of 17–33.[16] Although treatments can remove the warts, they do not remove the HPV, so warts can recur after treatment (about 50–73% of the time[18]), and also spontaneously regress.[16] Traditional theories postulated that the virus remained in the body for a lifetime. However, new studies using sensitive DNA techniques have shown that through immunological response the virus can either be cleared or suppressed to levels below what polymerase chain reaction (PCR) tests can measure. One study testing genital skin for subclinical HPV using PCR found a prevalence of 10%.[16]
