近十多年来,计划生育、流产及产前检查门诊做宫颈涂片的青年增多,发现不少异常的细胞学。其中多人经阴道镜检町认出非典型上皮。据报告55%青年有乙酸变白宫颈上皮,其中22%有异常细胞,但异常区的活检仅为上皮化生。本文对一组青年妇女长期观察其宫颈阴道移行区的变化。共观察110人,平均年龄18岁(16～20),只检查盆腔器官,宫颈涂生理盐水、5%乙酸和碘液后作宫颈刮片。在阴道镜下从移行区取粘膜细胞标本做扫描电镜检查。乙酸变白上皮结合血管类型把移行区分为Ⅰ、Ⅱ、Ⅲ级。碘试验:阳性(无着色),可疑(部分着色),阴性(全着色)。每六个月检查一次。110人中71人(65%)的宫颈移行区有乙酸变白上皮,余39人(35%)则无。54人随访,平均14月后26人乙酸变白上皮消失变成充满糖原的成熟生化鳞状上皮。另28人至36月后仍未改变,内27人移行区限于宫颈,1人伸展到阴道。12人为柱状和乙酸变白混合上皮(2人有化生)。三年后10人为混合型移行区,18人仍为乙酸变白上皮。乙酸变白区大小不等:20人<宫颈表面的10%;5人占宫颈的 In the past decade or so, there has been an increase in young people who have made cervical smears in family planning, abortion and prenatal care clinics and found many abnormal cytology. Many of them by colposcopy town recognized atypical epithelium. It is reported that 55% of young people have acetic acid whitening cervical epithelium, of which 22% of abnormal cells, but the abnormal biopsy is only epithelial metaplasia. This article on a group of young women long-term observation of cervical vaginal transitional changes. A total of 110 people were observed, the average age of 18 years (16-20), only check the pelvic organs, cervical smear saline, 5% acetic acid and iodine for cervical scraping. Colposcopy specimens taken from the transition zone under colposcopy scanning electron microscopy. Acetic acid whitening epithelium combined with vascular types of migration is divided into Ⅰ, Ⅱ, Ⅲ grade. Iodine test: positive (no coloring), suspicious (partial coloring), negative (full coloring). Check every six months. Of the 110 people, 71 (65%) had acetic acid whitening epithelium in the area of ​​cervical transition and 39 (35%) had none. 54 follow-up, an average of 14 after 26 acetic acid whitening epithelial disappeared into a mature glycosylated biochemical squamous epithelium. The other 28 to 36 months after the change has not changed, within the 27-person transition zone is limited to the cervix, 1 extended to the vagina. Twelve people were columnar and acetic acid whitening mixed epithelium (2 human with metaplasia). Three years later, 10 were mixed transitional zones and 18 were acetic acid whitening epithelium. Acetate white areas vary in size: 20 people <10% of the surface of the cervix; 5 people occupy the cervix