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HPV

Human Papilloma Virus

Genital human papilloma virus (HPV) is the most common sexually transmitted

infection. It is estimated that at least three out of four people who are sexually active will get an HPV infection during their lifetime. There are more than 100 HPV types. About

30 different types are spread through sexual contact. HPV can infect the genital areas

of males and females, causing genital warts. It can also cause abnormal PAP Smears

and cervical cancer in women. Most of those infected with HPV have no symptoms,

which contributes to the spread of these viruses.

The HPV virus is transmitted through genital contact most commonly during vaginal

and anal sex. It can also be passed on during oral sex and genital skin-to-skin contact.

Since most of those infected with the virus are asymptomatict a person can have it even

after years have passed since the last sexual contact.

 

Genital Warts (condylomas)

 

HPV types 6 and 11 cause most of the cases of genital warts/condylomas. Warts are

small bumps or groups of bumps in the genital area. They can be raised, flat, or shaped

like a cauliflower. They appear within weeks or months of sexual contact with an

infected partner.

Condylomas sometimes go away without treatment. In other cases they need to be

treated with medications or surgical removal. The optimal treatment depends on the

size and the location of the warts.

 

HPV and Cervical Cancer

 

Approximately 15 types of HPV are linked to cancer of the anus, cervix, vulva, vagina,

and penis. Of these. cervical cancer is the most common. The cervix is the opening of

the uterus at the top of the vagina. When the cells of the cervix are infected by HPV

they may become abnormal and start growing differently than the normal cells. These

abnormal cells can be detected by a Pap test, even when the woman has no symptoms.

Fortunately, in most cases the immune system destroys the virus and the cells return to

normal. For those women in which the virus cannot be eliminated by the immune

system, the abnormality of the cells of the cervix can become more severe and over the

course of several years they could develop cervical cancer. .

Since the Pap test can detect the early abnormalities caused by HPV infection, it is

possible to prevent cervical cancer. More frequent testing on women with known

infection with high risk HPV viruses can help detect those cases in which the severity of

the abnormal cells increases. This will guide treatment and prompt intervention before

cancer develops.

 

Prevention of HPV Infection

 

There are currently two different vaccines available to prevent infection with the most

common types of HPV. Gardasil protect against types 6, 11, 16, 18. Types 6 and 11

cause genital warts and types 16J 18 cause cervical cancer. Cervarix protects against

types 16 and 18. These vaccines are recommended for women under the age of 26.

They are most effective if given before a woman is sexually active but can also be given

to sexually active women and even those with previous HPV infection since the vaccine

can protect against other types of the virus.

 

Other steps to prevent HPV infection include:

 

Limiting the number of sexual partners.

Using condoms to reduce the possibility of skin-to-skin contact This will decrease

the possibility of infection but it does not completely eliminate it since not all skin

surfaces can be covered.