Cervical Intraepithelial Neoplasia (CIN) refers to the presence of abnormal cells on the surface of the cervix. It is also known as cervical dysplasia. CIN is classified into three grades based on the severity of abnormal cell changes: CIN 1 (mild dysplasia), CIN 2 (moderate dysplasia), and CIN 3 (severe dysplasia). CIN is not cancer, but it can potentially develop into cervical cancer if left untreated.
