What is hpv

Last updated: April 1, 2026

Quick Answer: HPV (Human Papillomavirus) is the most common sexually transmitted infection, caused by a virus that affects skin and mucous membranes. Some types can increase cancer risk, particularly cervical cancer.

Key Facts

Overview

HPV, or Human Papillomavirus, is a DNA virus that infects the cells of skin and mucous membranes. It is spread primarily through sexual contact, making it the most common sexually transmitted infection globally. While most people encounter HPV at some point, the body's immune system typically clears the infection within one to two years.

Types and Risk Levels

There are more than 100 identified types of HPV. Scientists classify them as low-risk or high-risk based on their potential to cause cancer. Low-risk types typically cause genital warts and rarely lead to serious complications. High-risk types, particularly HPV-16 and HPV-18, are responsible for most HPV-related cancers including cervical, anal, and oropharyngeal cancers.

Transmission and Symptoms

HPV spreads through direct genital contact during sexual activity. Most infected people show no symptoms, which is why regular screening is important for early detection. When symptoms do appear, they may include genital warts, abnormal pap smear results, or in advanced cases, cancer symptoms.

Prevention and Treatment

The HPV vaccine is highly effective at preventing infection with high-risk types when administered before exposure. Vaccines like Gardasil protect against multiple HPV types. For those already infected, treatment focuses on managing symptoms and monitoring for precancerous changes through regular screening.

Screening and Detection

Cervical cancer screening through pap smears and HPV testing has dramatically reduced cervical cancer rates in developed countries. Healthcare providers recommend regular screening for sexually active individuals to detect high-risk HPV infections early.

Related Questions

Can HPV be cured?

Most HPV infections are cleared by the immune system naturally. While there's no cure for persistent infection, antiviral treatments and monitoring can manage symptoms and prevent cancer development through regular screening.

What is the HPV vaccine?

HPV vaccines like Gardasil and Cervarix are preventive vaccines that protect against high-risk HPV types. They're most effective when given before sexual activity and are recommended for ages 9-45.

How is HPV tested?

HPV testing involves a pap smear or HPV DNA test to detect the virus in cervical cells. These tests identify infections early, allowing for monitoring and treatment before precancerous changes develop.

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Sources

  1. CDC - Human Papillomavirus (HPV) Public Domain
  2. WHO - HPV and Cervical Cancer Fact Sheet Public Domain
  3. Wikipedia - Human Papillomavirus CC-BY-SA-4.0