Pap Test

The cervix is the lower, narrow end of the uterus. Cells on the cervix grow all the time, just like skin. The cells at the bottom layer slowly move to the surface. Then they are shed.

When this process changes in some way, cells become abnormal. The changes may go away on their own. If they don't, they may worsen and lead to cervical cancer. In most cases, these changes are found with a Pap test.

As part of their regular health care, most women have a Pap test each year. A Pap test can find changes in the cells of the cervix that could lead to a problem.

For the Pap test, a speculum is inserted into the vagina. A small sample of cells is collected with a small brush or swab and scraper: The brush or swab is inserted into the cervical canal to reach the higher cells.