Abstract: The composition and prevalence of gynecological disorders of adolescents have dramatically changed over the last 30 years. There are some characteristics：①Higher rate of miscarriage and complications due to adolescent pregnancy. Approximately 2 to 4 million young unsafe abortions take place each year. Gestation related complications account for 22%-77% among the hospitalized teenage patients in the gynecological ward. ②Timely diagnosis and treatment of gynecology inflammatory diseases. Due to the delayed in diagnosis and treatment of pelvic inflammatory disease（PID），some patients show up at the clinic with advanced pelvic abscess. ③The high incidence of irregular uterine bleeding and poor comliance with treatment. Approximately 57% of female middle school and high school students have menstruation disorders.④Adolescents with gynecological neoplasms tend to seek medical consultation at a relatively later stage and undergo fertility preservation treatments. The preservation of ovarian function during chemotherapy has attracted much attentions recently. ⑤The association between endometriosis and genital tract malformation is becoming more and more common. Among all the 37 hospitalized teenage endometriosis patients during the last decade in the Chinese PLA General Hospital，20 cases were combined with genital tract malformation.

Key words: Adolescent, female, Pregnancy complications, Genital diseases, female, Metrorrhagia, female, Endometriosis