Abstract: Cervical intraepithelial neoplasia is a precursor lesion of cervical cancer.It is important to treat CIN properly and regularly.As the introduce of Thinprep pap test,the bethesda system and hybrid capture 2 system,the diagnosis of cervical intraepithelial neoplasia has a great improvement.Reasonable treatment of women with cervical intraepithelial neoplasia is effective and can preserve the fertility of women.It is the same significance for follow up and treatment of CIN.The patients were examined with cytologic,colposcope and human pap illomavirus.

Key words: Cervical intraepithelial neoplasia, Treatment, Follow-up