High-risk HPV types cause approximately 5% of all cancers worldwide. In the United States, high-risk HPV types cause about 3% of all cancers in women and 2% of all cancers in men.
Anyone who has ever had sexual intercourse of any kind in their life may have contracted HPV.
HPV is easily transmitted between partners through sexual contact.
HPV infections are more common in those who have many sexual partners or have had sex with someone who has many partners.
The person who has had only one partner in his life may also have been infected with HPV.
It is possible to have an HPV infection despite not having symptoms and that the only sexual contact with a person infected with HPV occurred many years before.
Ways to try to avoid infection
People who are not sexually active almost never have infections genitals due to HPV. The vaccine against HPV before sexual activity can reduce the risk of infection by the 9 HPV types covered by the_cc781905-5cde-3194-bb3b-136bad5cuna_vaccuna.
The Food and Drug Administration (FDA) has so far approved three vaccines to prevent HPV infection.
These vaccines provide strong protection against new HPV infections, but are not effective in treating existing HPV infections or diseases caused by HPV. Despite this, the latest studies show that they help to eliminate existing viruses in the body.
The CORRECT use of condoms helps to reduce the spread of HPV among sexual couples, but on many occasions it is not used properly. In addition to this, the fact that the areas that are not covered by the condom can become infected by the_cc781905-5cde-3194-bb3b-136bad5cf58d, makes the condom novirus_ consider fully effective protection against infection.
How to detect HPV infections
Las infecciones por VPH pueden detectarse al analizar una muestra de células para ver si contienen_cc781905-5cde-3194-bb3b -136bad5cf58d_ADN o ARN viral.
The most common HPV test detects the DNA of several high-risk HPV types in a group, but cannot identify the specific types that are present.
Other tests do show whether DNA or RNA from HPV types 16 and 18, the two types that cause most HPV-related cancers, are present.
These tests can detect HPV infections before abnormal cell changes are evident, and before treatment is needed for the cell changes.
Treatment possibilities
No hay en la actualidad tratamiento médico para las infecciones persistentes por VPH_cc781905-5cde -3194-bb3b-136bad5cf58d_that do not cause abnormal cellular effects. Sin embargo, es posible tratar las verrugas genitales, los tumores benignos de las vías respiratorias, los cambios precancerosos en el_cc781905-5cde-3194-bb3b -136bad5cf58d_cervix, and cancers resulting from HPV infections.
The methods that are commonly used to treat precancerous changes of the cervix are cryosurgery (freezing that destroys_cc781905-5cde-3194-bb3b-136bad_tissue), extraction consisting of cheeks of a small portion of tissue from the cervix and the cone-shaped cervical canal.
Los tratamientos para otros tipos de tumores benignos de las vías respiratorias y para cambios precancerosos causados por VPH (lesiones de_cc781905-5cde-3194-bb3b- 136bad5cf58d_vagina, de pene y de ano) y verrugas genitales son los productos químicos o fármacos tópicos, la cirugía por_cc781905-5cde-3194-bb3b- 136bad5cf58d_excision, cryosurgery, la electrosurgery and laser surgery.
Factors that increase the risk of HPV evolution
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Factors that may increase the risk that an infection with a high-risk HPV type will persist and possibly progress to cancer are:
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Smoking or chewing tobacco (for increased risk of oropharyngeal cancer)
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Having a weakened immune system
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Having many children (for a higher risk of cancer cervical)
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Using oral contraceptives for a long time
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Hygiene deficient oral
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Inflammation chronic
Research seems to show that it can take 10 to 30 years from the time a person is infected with HPV until they develop a tumor.
When abnormal cells appear in the cervix (cervical intraepithelial neoplasia 3, or CIN3) they do not always result in cancer. The percentage of lesions CIN3 that progress to invasive cervical cancer has been estimated at 50% or less.
High-risk papillomavirus causes various types of cancer.
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Cáncer de cuello uterino: Prácticamente todos los casos de cáncer cervical son causados por infecciones_cc781905-5cde-3194-bb3b -136bad5cf58d_por HPV, and only two types, 16 and 18, are responsible for almost 70% of all cases.
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Anal cancer: About 95% of anal cancers are caused by HPV. Most of these are caused by HPV type 16.
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Oropharyngeal cancers. About 70% of these are caused by HPV and most of them by type 16.
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Cánceres poco comunes: Los VPH causan cerca de 65% de los cánceres de vagina, 50% de los cánceres de vulva_cc781905-5cde-3194 -bb3b-136bad5cf58d_y 35% of cancers of penis. Most of these are caused by HPV type 16.