Quality Control of Colposcopy Application

1. inclusion/exclusion criteria inclusion：(1) at least 18 years of age; (2) Complete colposcopy report; (3) Clear pathological diagnosis was reported after colposcopic biopsy. exclusion：Not all of the above criteria are met 2. study purpose Main purpose 1）analyze the correlation between colposcopy indications and pathological findings Secondary purpose 1. Influence of colposcopic transformation area type on pathological evaluation 2. Colposcopic follow-up results 3. The differences and causes of colposcopic biopsy pathology and histology 4. Quality of colposcopy in our hospital （3）Retrospective study Data of out-patient population in our hospital from 2005 were included