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When your doctor says that your Pap test, or Pap smear, was abnormal, it means that the test found some cells on your cervix that do not look normal.
A Pap test may be done as part of a woman's routine physical exam, because it's the best way to prevent cervical cancer. But having an abnormal test result doesn't mean you have cancer. In fact, the chances that you have cancer are very small.
Most of the time, the abnormal cell changes are caused by certain types of human papillomavirus, or HPV. HPV is a sexually transmitted infection.
Usually these cell changes go away on their own. But certain types of HPV have been linked to cervical cancer. That's why regular Pap tests are so important.
Sometimes the changed cells are due to other types of infection, such as those caused by bacteria or yeast. These infections can be treated.
In women who have been through menopause, a Pap test may find cell changes that are just the result of getting older.
Certain sexual behaviors, like having sex without condoms and having more than one sex partner (or having a sex partner who has other partners), can increase your risk for getting HPV. And HPV raises your risk for having an abnormal pap test.
HPV can stay in your body for many years without your knowing it. So even if you now have just one partner and practice safer sex, you could still have an abnormal Pap test if you were exposed to HPV in the past.
Smoking or having an impaired immune system also raises your chances of having cell changes in your cervix.
The cell changes themselves don't cause symptoms. HPV, which causes most abnormal Pap tests, usually doesn't cause symptoms either.
If a different sexually transmitted infection is the cause of your abnormal test, you may have symptoms such as:
You may need more tests to find out if you have an infection or to find out how severe the cell changes are. For example, you may need:
A colposcopy is usually done before any treatment is given. During a colposcopy, the doctor also takes a small sample of tissue from the cervix so that it can be looked at under a microscope. This is called a biopsy.
Treatment, if any, will depend on whether your abnormal cell changes are mild, moderate, or severe. In moderate to severe cases, you may have treatment to destroy or remove the abnormal cells.
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Most abnormal Pap tests are caused by HPV infections.
Other types of infection—such as those caused by bacteria, yeast, or protozoa (Trichomonas)—sometimes lead to minor changes on a Pap test called atypical squamous cells.
Natural cell changes that may happen during and after menopause can also cause an abnormal Pap test.
Certain sexual behaviors—such as having sex without condoms and having more than one sex partner—increase your risk of getting an HPV infection. And an HPV infection raises your risk for having abnormal test results.
Other things that may also play a role in increasing your risk include:
If you have had one abnormal Pap test result, you're more likely to have another in the future.
Lab specialists label abnormal cells according to how abnormal they are—how different they are from normal cells. Knowing what type of abnormal cells you have helps your doctor decide on treatment.
Minor cell changes may disappear without treatment. But sometimes they turn into more serious cell changes. Types of minor cell changes are:
Moderate to severe cell changes—HSIL and AGC—are more likely to be precancerous and turn into cervical cancer if left untreated.
In some countries, other labeling systems are used. These systems may use the term dysplasia to describe cervical cell changes. Or they may simply describe the changes as mild, moderate, or severe.
When your Pap test result is abnormal, you always need to follow up with your doctor. Often this just means having regular checkups and Pap tests. But sometimes it means more tests or treatment.
It's very important to complete any further testing that your doctor recommends.
Most women won't need special testing or treatment. Instead, they'll follow a schedule of regular Pap tests to watch for cell changes. This is called watchful waiting. It may be recommended when:
It's okay to do nothing but watch and wait, because minor cell changes such as ASC-US or LSIL don't usually become more severe during a short period of watchful waiting.
Watchful waiting may not be a good choice if you don't think you'll be able to follow your doctor's recommendations about having regular Pap tests. Talk with your doctor about your testing choices.
After an abnormal Pap test, you may need more tests to look for infection or to find out more about your cell changes. These tests include:
The type of treatment you have will depend on what caused the abnormal test results.
Infection: If your abnormal test results were caused by a vaginal infection or a sexually transmitted infection, you can be treated with medicine.
Menopause: Women near menopause may have abnormal results because of normal body changes during menopause. These minor cell changes may improve with the use of estrogen cream.
Moderate or severe cell changes, such as HSIL. Your treatment will focus on destroying or removing the abnormal tissue. Treatment choices include:
For cervical cancer, treatment will focus on destroying or removing the cancer. To learn more, see the topic Cervical Cancer.
A pregnant woman with an abnormal Pap test is monitored closely throughout her pregnancy. Monitoring may include a colposcopy. The goal is to rule out cervical cancer, a rare diagnosis. If cancer is ruled out, treatment for abnormal cell changes is done after delivery.
Other Works Consulted American College of Obstetricians and Gynecologists (2010). Management of abnormal cervical cytology and histology. ACOG Practice Bulletin No. 99. Obstetrics and Gynecology, 112(6): 1419–1444. American College of Obstetricians and Gynecologists (2012). Screening for cervical cancer. ACOG Practice Bulletin No. 131. Obstetrics and Gynecology, 120(5): 1222–1238. Wright TC, et al. (2007). 2006 consensus guidelines for the management of women with abnormal cervical cancer screening tests. American Journal of Obstetrics and Gynecology, 197(4): 346–355.
ByHealthwise StaffPrimary Medical ReviewerSarah Marshall, MD - Family MedicineSpecialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Current as ofMarch 12, 2014
Current as of: March 12, 2014
Author: Healthwise Staff
Medical Review: Sarah Marshall, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
To learn more, visit Healthwise.org
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