How to prevent cervical cancer.

摘要

The cervix, or opening of the womb, is located deep in the vagina. Cancer of the cervix is caused by a common sexually transmitted infection called human papillomavirus (PAP-uh-LO-ma-vi-rus), or HPV. Most HPV infections do not cause symptoms and go away in a few years without treatment. But in some people, HPV infection can eventually lead to cancer. There are more than 100 different types of HPV. Most are low-risk types that can cause genital warts, but not cervical cancer. High-risk types are much more likely to cause precancer or cancer.