Cervical cancer is largely preventable when HPV vaccination, appropriate screening, and timely medical care are combined. Human papillomavirus (HPV) is a very common infection, and persistent infection with high-risk HPV types is responsible for almost all cervical cancer cases. The HPV vaccine is designed to prevent infection with important cancer-causing HPV types before exposure occurs. It does not treat an existing HPV infection or established cervical cancer, but it can significantly reduce the risk of developing HPV-related disease. The World Health Organization (WHO) identifies HPV vaccination and regular cervical screening as key measures for reducing the burden of cervical cancer.