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    The cervix is the lower end of the womb (uterus). It is at the top of the vagina. It is about 1 inch long. The cervical canal passes through the cervix. It allows blood from a menstrual period and a baby (fetus) to pass from the womb into the vagina.

    The cervical canal also allows sperm to pass from the vagina into the uterus.

    Conditions that affect the cervix include:

    • Cervical cancer
    • Cervical inflammation
    • Cervical intraepithelial neoplasia (CIN)
    • Cervical polyps
    • Cervical pregnancy
    • Cervical dysplasia

    A PAP smear is a screening test to check for cancer of the cervix. 

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Review Date: 1/13/2013  

Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by A.D.A.M. Health Solutions, Ebix, Inc., Editorial Team: David Zieve, MD, MHA, David R. Eltz, Stephanie Slon, and Nissi Wang.

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