近10年来日益普遍地把宫颈巴氏涂片作为普查手段以检出宫颈癌前病变。在进行大规模普查的地区,浸润癌的发病率及死亡率虽已显著下降,但宫颈上皮内瘤样变(CIN)的检出率却上升。据美国抗癌协会统计,仅1984年新发现有宫颈上皮内瘤样变的妇女达200,000例。其中20—30岁的育龄妇女 Cervical Pap smear is increasingly used as a census in the past 10 years to detect cervical precancerous lesions. Although the incidence and mortality of invasive cancer have dropped significantly in areas where large-scale censuses are conducted, the detection rate of cervical intraepithelial neoplasia (CIN) has increased. According to the American Association for the Prevention of Cancer, only 200,000 new cases of cervical intraepithelial neoplasia were found in 1984 alone. 20-30 year old women of childbearing age