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Some HPV types, such as HPV5, may establish infections that persist for the lifetime of the individual without ever manifesting any clinical symptoms. HPV types 1 and 2 can cause common warts in some infected individuals. [18] HPV types 6 and 11 can cause genital warts and laryngeal papillomatosis. [1] Many HPV types are carcinogenic. [19]
The highest-risk types are HPV 16 and 18; these are responsible for the vast majority of HPV-related cancers, including cancers of the cervix, vagina, vulva, penis, anus, and head and neck.
Papillomaviridae is a family of non-enveloped DNA viruses whose members are known as papillomaviruses. [1] Several hundred species of papillomaviruses, traditionally referred to as "types", [2] have been identified infecting all carefully inspected mammals, [2] but also other vertebrates such as birds, snakes, turtles and fish.
Nearly 1 in 3 men have at least one type of HPV. But the burden of screening for this widespread STI is on women. Experts explain why.
Symptoms in men include pain when urinating, and abnormal discharge from their penis. [61] If left untreated in both men and women, chlamydia can infect the urinary tract and potentially lead to pelvic inflammatory disease (PID). PID can cause serious problems during pregnancy and even has the potential to cause infertility.
It usually doesn't cause any symptoms or health issues and goes away on its own -- but certain types of HPV can cause cancer if they don't go away. Nearly half of men have genital HPV, study says ...
The cause of CIN is chronic infection of the cervix with HPV, especially infection with high-risk HPV types 16 or 18. It is thought that the high-risk HPV infections have the ability to inactivate tumor suppressor genes such as the p53 gene and the RB gene, thus allowing the infected cells to grow unchecked and accumulate successive mutations, eventually leading to cancer.
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