A Pap smear screens for cervical cancer that the human papillomavirus (HPV) causes. There are many different types of HPV, but high-risk HPV strains that are responsible for cervical cancer spread through sexual contact with a partner who has an HPV infection.
HPV infections are very common, but most of the time, your immune system suppresses the virus and clears it out of your body, even if it’s a cancer-causing strain. In some women, however, the virus manages to invade healthy cells in the cervix, where it continues to cause abnormal cell growth.
The affected cells gradually go through changes, first becoming precancerous, then over the years turning into cancer. A Pap smear detects these changes, alerting you to the growing danger while there’s time to treat the problem and prevent the cancer from spreading.
The next step depends on the grade of your cervical cells. If the cells are slightly abnormal but the cause is undetermined, your Advanced Women’s Healthcare doctor may recommend getting an HPV test, or waiting a few months then repeating your Pap smear. By waiting a short time, your body may finish clearing away the abnormal cells, and your next Pap may be normal.
When your first Pap test results are moderate to severe, or when a follow-up Pap smear shows that mild changes haven’t improved, your doctor performs a colposcopy, which is a close-up visual examination of your cervix using magnification. During the colposcopy, your doctor can see abnormal growth and take a biopsy for a more in-depth evaluation of the tissues.