What are the clinical classifications of cervical precancerous lesions?

The incidence of cervical precancerous lesions ranks first among gynecological malignancies, seriously threatening women's health and survival. In recent years, the incidence of cervical cancer has increased year by year, and the incidence tends to be younger. Clinically, cervical cancer patients aged 20 to 30 are not uncommon. The following is an introduction to the classification of cervical precancerous lesions.

Types of cervical precancerous lesions:

CIN classification

CIN is a precancerous lesion that may appear normal in appearance, but cytological or histological examinations show abnormal proliferation. According to the degree of atypical proliferation, CIN is divided into CINⅠ, CINⅡ, and CINⅢ.

CIN grade Ⅰ: equivalent to very mild and mild atypical hyperplasia;

CIN grade II: equivalent to moderate atypical hyperplasia;

CIN grade III: equivalent to severe atypical hyperplasia and carcinoma in situ.

Sometimes the difference may be very small, but overall CIN has a 15% chance of developing into cervical cancer. It is sometimes difficult to predict the outcome of each case of CIN, as they all carry the risk of further malignant development. The rate of CIN developing into invasive cancer is 7 times higher than normal, which is why CIN should be taken seriously and properly treated.