宫颈癌是妇女常见的恶性肿瘤之一,发病率居女性恶性肿瘤第二位,仅次于乳腺癌,80%的病例发生在发展中国家。近几年来,我国宫颈癌发病率有年轻化的趋势,病例数不断上升[1]。绝大多数宫颈癌由癌前病变发展为宫颈癌大约需要10年,癌前病变具有可逆性,在此期间可以没有或少有临床症状 Cervical cancer is one of the common malignant tumors in women. The incidence of cervical cancer is the second most common malignant tumor among women, second only to breast cancer, and 80% of cases occur in developing countries. In recent years, the incidence of cervical cancer in our country tends to be younger, the number of cases is on the rise [1]. The vast majority of cervical cancer from precancerous lesions to cervical cancer takes about 10 years, precancerous lesions are reversible, in the meantime there may be no or less clinical symptoms