The three grade levels of CIN include: If you have vaginal bleeding or spotting after engaging in penetrative or oral sexual activity, talk to your doctor. While not a hard and fast rule ...

[6] Cervical histological diagnoses were categorized as CIN 2, CIN 2 or worse (CIN 2+, i.e., CIN 2, CIN 3, cervical adenocarcinoma in situ [AIS], and invasive carcinoma), CIN 3, and CIN 3 or worse ...

Study results suggested that a higher CIN grade was associated with age greater than 34 years, ethnic group, lower educational achievement, cigarette smoking, and HPV infection. These ...