Cervical intraepithelial neoplasia (CIN) is an abnormal growth of cells on the cervix. The cervix is the lower part of the uterus that opens into the vagina. Babies grow in the uterus, and menstrual blood comes from the uterus.
CIN is not cancer, but it can become cancer of the cervix if it is not treated.
You have a greater risk for CIN if:
Usually CIN does not cause symptoms. Sometimes it causes bleeding during or after sex or a change in vaginal discharge.
A Pap test can find cell changes in the cervix. If it does, then a follow-up exam called a colposcopy may be done. A colposcopy gives your healthcare provider a closer look at the cervix. The colposcope is a kind of microscope attached to a stand. It is placed just outside the vagina. It acts like a magnifying glass and makes it easier to see the cells of the skin of the vulva, vagina, and cervix. Your provider may use an instrument to remove one or more small pieces of tissue for lab tests. The removal of the sample tissue is called a biopsy.
Your provider may recommend treatment of CIN to try to help stop it from becoming cancer. The type of treatment may depend on whether the CIN is mild, moderate, or severe.
Very few women have trouble getting pregnant or miscarriages as a result of any of these treatments. Most women are able to carry a baby to term without problems. However, if you get pregnant, you should tell your prenatal care provider about any cervical treatments you have had.
After a Pap test that shows CIN, follow your healthcare provider's advice for treatment and checkups. Your provider may recommend that you have a Pap test at least twice a year for the next 2 to 3 years. This will let your provider find CIN if it comes back and treat it promptly. If your Pap tests are normal for 2 to 3 years, you may then need a Pap test just once a year.
To lower your risk of CIN: