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Abnormal Pap Test - Cause

Most abnormal Pap tests are caused by human papillomavirus (HPV) infections. Other types of infection-such as those caused by bacteria, fungi (yeast), or protozoa (Trichomonas)-sometimes lead to minor changes on a Pap test called atypical squamous cells of undetermined significance (ASC-US). The most common cause is HPV infection. Natural cervical cell changes (atrophic vaginitis) related to menopause can also cause an abnormal Pap test.

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WebMD Medical Reference from Healthwise

Last Updated: October 17, 2011
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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