Dr. George Papanicolaou discovered that it was possible to detect cancer by inspecting cervical cells. The Pap smear, the cervical cancer screening test, is named after him. American Cancer Society/AP hide caption

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The human papilloma virus causes most — but not all — cases of cancer of the cervix. James Cavallini/ScienceSource hide caption

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Specialists Split Over HPV Test's Role In Cancer Screening

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Dr. Donald Brown inoculated Kelly Kent with the HPV vaccine in his Chicago office in the summer of 2006 — not long after the first version of the vaccine reached the market. Charles Rex Arbogast/AP hide caption

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First-year medical student Michelle Gentile assists her classmate Abbie Harts as she performs a pelvic exam on a volunteer at Northwestern University. Joshua Lott/Reuters /Landov hide caption

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Two cervical cancer cells divide in this image from a scanning electron microscope. Steve Gschmeissner/Getty Images/Science Photo Libra hide caption

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Should HPV Testing Replace The Pap Smear?

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Snip Decision: Africa's Campaign To Circumcise Its Men

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The human papilloma virus causes most cervical cancers. That's why HPV testing is now recommended for women ages 30 to 65. Science Photo Library hide caption

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