A retrospective analysis on 1901 women with high grade cervical intraepithelial neoplasia by colposcopic biopsy

The diagnostic accuracy of HSIL by colposcopic biopsy is about 80% and associated with some factors including symptom, cytology result, colposcopy diagnosis, and biopsy number. These variables may be predictors for over-diagnosis or under-diagnosis of HSIL by colposcopic biopsy.