CIN is also sometimes also called cervical dysplasia.
While it requires some medical intervention, CIN doesnt usually cause symptoms.
This is why getting routinePap smearsis such an important part of preventive healthcare.

Verywell / Jessica Olah
Only a Pap smear can see the signs of CIN.
In many cases, these lesions will clear away on their own as your bodys natural defenses destroy them.
Other times, the cells may have spread already so further medical intervention may be necessary.

The three grade levels include:
What Is an Abnormal Pap Test Result?
Your healthcare provider can determine the total level of risk in your personal situation and the next appropriate steps.
Common options to reduce complications include removing the cells or destroying them so healthy cells can replace them.

These treatments can even be used in later disease stages, in which the diseased cells have spread.
Most Common Complications
The biggest concern and complication associated with CIN is HPV and cervical cancer.
They may also be more likely to develop health problems from HPV.

You should also be have regular Pap tests.
Heres what the National Cancer Institute’s 2020 Guidelines recommend based on your age group.
While your doctor can test you for HPV in their office, there are also at-home HPV tests available.
If you have HPV, it is recommended that you see a doctor to discusstreatment options.
A Word From Verywell
Chances are youre not going to notice any signs or symptoms of CIN.
This is why it’s important to get tested in accordance with the guidelines listed above.
Symptoms are rare in CIN 1, CIN 2, and CIN 3.
Postcoital bleeding is one sign of CIN.
doi:10.1371/journal.pone.0217396
National Cancer Institute.Cervical cancer prevention (pdq)patient version.
Cleveland Clinic.Cervical intraepithelial neoplasia (CIN).
Centers for Disease Control and Prevention.How Many Cancers Are Linked with HPV Each Year?.
Centers for Disease Control and Prevention.STD facts human papillomavirus.
National Cancer Institute.Acss updated cervical cancer screening guidelines explained.