HPV vaccine does not cause infertility

The human papilloma virus HPV is  a family of viruses, there are over 110 different types of HPV and more than 50 types that affect the genitals.
Different types of HPV are either high risk or low risk, depending on the conditions they can cause.

Some types of HPV can cause warts or verrucas. Others are associated with cervical cancer. Infection with low-risk HPV causes no symptoms and goes away without treatment. But infection with some high-risk types of HPV can cause abnormal tissue growth and cell changes that can lead to cervical cancer.

HPV infection is spread during sexual intercourse, it has been linked with reduced semen quality and lower pregnancy rates. Sexually transmitted infections STIs are associated with lower fertility, but vaccinated women with an STI history had about the same chance of becoming pregnant as unvaccinated women who had never had an STI.

Infection with other types of HPV may cause genital warts, skin warts, verrucas, vaginal cancer or vulval cancer. There is no adverse effects of HPV vaccination on fertility.

HPV is common, almost all sexually active men and women get the virus at some point in life. Having HPV can increase the risk of cervical cancer and removing cancerous or precancerous cells from cervix can reduce fertility.
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Effectiveness of cervical cancer vaccine

A vaccine that can eradicate the majority of cervical cancer cases shows long-term effectiveness, researchers examined different women in different countries after taking the vaccine the results showed that vaccination with Gardasil 9 can reduce 90 percent of cervical cancers.

The vaccine is unique in its ability to prevent certain cancers. HPV infections cause global disease and deaths. Routine screening by Pap smears or tests for HPV infection has reduced death rates. Vaccination against the sexually transmitted human papillomavirus HPV prevents some cancers.

The vaccine immunizes against nine genotypes of HPV known to cause cervical cancer, as well as vulvar, vaginal and anal cancers and genital warts caused by HPV.

Gardasil vaccine targets the two HPV genotypes that caused about 70 percent of cervical cancer and two other genotypes that cause genital warts. Gardasil 9 targets those four genotypes and five others. Both vaccines are prophylactic, meant to be given before females or males become exposed to HPV infection through intimate contact.

Women were followed for efficacy at preventing disease for up to six years after the first vaccine shots, and they were followed for production of infection-halting antibodies against the nine genotypes of HPV for more than five years.

They were followed by gynecological examination for evidence of infections or disease, and their blood sera were tested for antibody levels against HPV.
Gardasil 9 showed 97.4 percent efficacy to prevent infections and disease caused by the five additional HPV genotypes not included in the four-valent Gardasil vaccine. Gardasil 9 vaccination produced similar antibody protection against the four HPV genotypes in Gardasil.
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