宫颈上皮内瘤样病变(CIN)是育龄妇女常见疾病。治疗方法包括宫颈锥形切除术、激光治疗、冷冻治疗以及宫颈环状电切术(LEEP)。已发现宫颈锥形切除术对妊娠有不良影响,包括早产、低出生体质量儿、宫颈功能不良以及宫颈硬化。早产是新生儿患病和死亡的主要原因。尽管近20年新生儿 Cervical intraepithelial neoplasia (CIN) is a common disease of women of childbearing age. Treatments include cervical conization, laser treatment, cryotherapy, and cervical loop resection (LEEP). Cervical conization has been found to have adverse effects on pregnancy, including premature birth, low birth weight children, cervical dysfunction, and cervical sclerosis. Preterm birth is the leading cause of illness and death in newborns. Despite nearly 20 years of newborns