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The previously-held belief that anal cancer is caused by the chronic irritation associated with cracks (fissures), hemorrhoids, and abnormal passageways (fistulae), is falling out of favor. It is now believed that most cases of anal cancer are cau...
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The exact cause of most anal cancers is unknown, although certain individuals appear to have a higher risk of developing the disease. Smokers are at higher risk, as are individuals with certain types of the human papillomavirus (HPV), and those wi...
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Human papilloma viruses (HPV) are a large group or related viruses, some of which play a part in the development Transmission electron micrograph of human papilloma virus, magnified 40,000 times. HPV is the cause of warts, including genital warts,...
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