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Human papillomavirus or HPV
The human papillomavirus (HPV) is a virus that is the leading cause common warts of the hands and feet, as well as lesions of the mucous membranes of the oral, anal and genital cavities.
Genital HPV infection is one of the diseases most common sexually transmitted diseases.
Types of human papillomavirus
Have identified 60 subtypes of human papilloma virus, some of which are associated with cancerous and precancerous conditions. The virus can be transmitted through sexual contact and is frequently found in cervical cancer.
HPV infection causes
About a third of the types of HPV can be transmitted through sexual contact.
Some types of human papillomavirus (HPV) cause common skin warts. Some types can cause genital warts, the most recognizable sign of HPV infection. Genital warts, it is common simultaneous infection with several subtypes of warts.
Other HPV types are associated with the development of cancer of the cervix.
There is evidence laboratory show that there is a worsening of cervical cancer HPV, especially for high-risk HPV types induced.
Despite the strong links between HPV and cervical cancer, most HPV infections resolve spontaneously and do not cause further injury. Although HPV infection is common, cancer eventually develops in only a small percentage of infected patients.
Other factors that are believed to be associated with HPV and cervical cancer include:
Like many other sexually transmitted diseases, genital warts caused by HPV often have no symptoms. According to some studies, almost half of women with HPV have no visible symptoms.
In many cases, however, among the first 3 weeks and the first 3 months after exposure portuberancias develop small, easily visible to the naked eye. In women, the warts occur on the lips of the vagina, inside or around the anus. Anogenital warts can cause itching.
Women also develop cervical warts, which are invisible lesions in their early stages. Cervical warts are a common cause of abnormal Pap tests.
Warts on the skin (face, hands, legs, feet) can cause slight itching or tenderness, but often are asymptomatic.
It is important for a person who can have genital warts that you consult a doctor to check for other types of infections or similar conditions that may rule out or treat.
Genital warts are diagnosed by direct visual examination. You need a pelvic exam to detect and diagnose cervical infection, using Pap smear or other tests. Warts on the skin (face, hands, legs, feet) are diagnosed clinically.
Common skin warts can be treated by freezing (cryosurgery) or products with salicylic acid (occlusal, TRANSVER-Sal, Duofilm and Viranol). Warts often reoccur. In severe cases, laser therapy can be effective.
Genital warts often occur in clusters and can accumulate in large masses on genital tissues. Often they recur after treatment. Depending on factors such as their size and location, genital warts are treated in several ways:
A doctor may recommend treatment with a chemical such as podophyllin solution to 25 percent, which is applied to the affected area and wash area after several hours. Podophyllin should not be used during pregnancy because it is absorbed through the skin and can cause birth defects.
Small warts can be removed by freezing (with liquid nitrogen) or burn (electrodessication).
Imiquimod, a cream 5 percent, which is an interferon inducer, has a moderate activity in clearing external genital warts.
Sometimes surgery is necessary to remove large warts that have not responded to other treatments. Doctors at some centers also use laser surgery to remove genital warts.
Cervical infection and cellular changes may require colposcopy, an examination painlessly during which a lighted magnifying instrument is used to view the internal reproductive organs in women.
In some cases, it is necessary to do a biopsy of tissue from the cervix. This involves taking a small sample of tissue from the cervix and examined under a microscope. Depending on the nature of the cervical lesion, cauterization, freezing (cryosurgery), laser or surgery may be necessary.