A Pap smear is an examination under the microscope of cells scraped from the cervix.

The Pap smear can detect cancerous or precancerous conditions of the cervix. It should be done on a regular basis (see physical exam frequency for how often Pap smears should be performed).

The Pap smear is done as part of a gynecological exam. You will lie on a table and place your feet in stirrups to position your pelvis for examination. The health care provider will insert an instrument (speculum) into your vagina and open it slightly to see inside the vaginal canal.

The health care provider will take a sample of cells from outside and inside the canal of the cervix by gently scraping the outside of the cervix with a wooden or plastic spatula, then inserting a small brush that looks like a pipe cleaner into the canal.

The cells are placed on a glass slide, or put in a bottle containing a preservative, and then sent to the lab for examination.

Tell your health care provider if you:

• Are taking any medications or birth control pills
• Have had an abnormal Pap smear
• Might be pregnant

Within 24 hours of the test, avoid:

• Douching
• Having intercourse
• Taking a tub bath
• Using tampons

Avoid scheduling your Pap smear while you have your period (are menstruating), because blood and cells from the uterus may affect the accuracy of the Pap smear. Empty your bladder just before the test.

You may have some discomfort, similar to menstrual cramps, and a feeling of pressure during the procedure. You may bleed a little bit after the test.