An instrument called a speculum holds the walls of the vagina open so that the cervix may be viewed and a swab of cells obtained for analysis.
Review Date 10/21/2017
Updated by: Todd Gersten, MD, Hematology/Oncology, Florida Cancer Specialists & Research Institute, Wellington, FL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.