What causes gw

Content on WhatAnswers is provided "as is" for informational purposes. While we strive for accuracy, we make no guarantees. Content is AI-assisted and should not be used as professional advice.

Last updated: April 4, 2026

Quick Answer: GW, or Genital Warts, are primarily caused by specific strains of the Human Papillomavirus (HPV), a common sexually transmitted infection. These HPV types infect the skin and mucous membranes of the genital area, leading to the development of warts.

Key Facts

What are Genital Warts (GW)?

Genital warts, medically known as condylomata acuminata, are a sexually transmitted infection (STI) caused by certain types of the Human Papillomavirus (HPV). HPV is a very common virus, and most sexually active individuals will get HPV at some point in their lives, though not necessarily genital warts. The virus infects the skin and mucous membranes of the genital and anal areas. When these infected cells grow abnormally, they form warts.

There are over 200 different strains of HPV. While many strains are harmless and may cause warts on hands or feet, about 40 strains are known to infect the genital area. The strains responsible for genital warts are typically low-risk types, most commonly HPV types 6 and 11, which cause about 90% of all cases. These low-risk types are generally not associated with cancer, but high-risk HPV types (like 16, 18, 31, 33, 45, 52, and 58) are linked to various cancers, including cervical, anal, penile, vaginal, vulvar, and oropharyngeal cancers. It's crucial to understand that a person can be infected with both high-risk and low-risk HPV types simultaneously.

How are Genital Warts Transmitted?

Genital warts are transmitted through direct skin-to-skin contact with an infected area during sexual activity. This includes vaginal, anal, and oral sex. The virus can be transmitted even when the infected person has no visible warts, as shedding of the virus can occur asymptomatically. Condoms can reduce the risk of transmission but do not eliminate it entirely because they may not cover all infected areas.

What are the Symptoms of Genital Warts?

The appearance of genital warts can vary significantly. They may present as:

The warts can appear weeks or months after the initial infection, making it difficult to pinpoint when transmission occurred. They can develop on the penis, scrotum, vulva, vagina, cervix, perineum, or around the anus. They can also occur inside the vagina or anus, where they may not be visible.

Can Genital Warts Be Prevented?

The most effective way to prevent genital warts and other HPV-related infections is through vaccination. HPV vaccines are recommended for preteens and can protect against the most common high-risk and low-risk HPV types. For sexually active individuals, practicing safer sex, including consistent condom use, can reduce the risk of transmission. Limiting the number of sexual partners also lowers the likelihood of exposure. Regular screening for STIs and cervical cancer (Pap tests and HPV tests) is also important for early detection and management.

How are Genital Warts Treated?

While genital warts are caused by a virus that the body's immune system can sometimes clear on its own, treatment is often sought for cosmetic reasons, to relieve discomfort, or to reduce the risk of transmission. Treatment options include:

It's important to consult a healthcare provider for diagnosis and a treatment plan, as self-treating can sometimes lead to complications or incomplete removal. Even after treatment, warts can recur if the body's immune system doesn't fully clear the virus.

Genital Warts and Cancer Risk

The HPV strains that cause genital warts (primarily types 6 and 11) are known as low-risk types because they have a very low risk of causing cancer. However, other HPV strains, classified as high-risk types, are responsible for the majority of HPV-related cancers. Persistent infection with high-risk HPV types can lead to cellular changes that may eventually develop into cancer. This is why regular screening, such as Pap tests and HPV tests for cervical cancer, is crucial for women, and why HPV vaccination is recommended to protect against both wart-causing and cancer-causing strains.

Sources

  1. HPV (Human Papillomavirus) - STD Factsfair-use
  2. Human papillomavirus (HPV) Fact Sheetfair-use
  3. Genital warts - Symptoms and causes - Mayo Clinicfair-use

Missing an answer?

Suggest a question and we'll generate an answer for it.