HPV

HPV is the most common sexually transmitted infection in the world — so common that most sexually active people will contract at least one strain at some point in their lives. The virus comes in more than 150 types, and the vast majority cause no symptoms at all and resolve without treatment within one to two years. A smaller number of strains are classified as low-risk (they can cause genital warts) or high-risk (they have the potential to cause cancer over time).

The high-risk strains — particularly HPV 16 and HPV 18 — are responsible for nearly all cases of cervical cancer and a substantial portion of other anogenital and oropharyngeal cancers. The virus does not cause cancer overnight. When a high-risk HPV infection persists rather than clearing on its own, it can gradually cause cellular changes in the cervix called dysplasia, which, if left undetected and untreated, may progress to cancer over years or decades. This slow progression is exactly why routine Pap smears and HPV co-testing are so powerful: they catch abnormal cells early, when intervention is straightforward.

Vaccination against HPV is one of medicine's most effective cancer-prevention tools. The vaccine protects against the strains most likely to cause cancer and is recommended for preteens, with catch-up vaccination available through age 26 (and sometimes up to 45 in consultation with your doctor). Being vaccinated does not replace the need for regular cervical screening, but together they dramatically reduce risk.

An HPV diagnosis can feel alarming, but understanding what it actually means can help put it in perspective. Most infections are temporary and never lead to health problems. What truly matters is staying current with your cervical screening schedule, because that is how abnormal changes are caught before they become cancer.

If a Pap or HPV test comes back abnormal, your provider may recommend a follow-up procedure called a colposcopy to look more closely at the cervix. Early-stage cervical cell changes are highly treatable. The combination of vaccination for younger women and girls, regular screening for all women, and timely follow-up for abnormal results means that cervical cancer — once a leading cancer killer of women — is now largely preventable. Knowing where you stand, and keeping those appointments, is one of the most concrete things you can do for your long-term health.