Abstract： Objective To discuss the use of transvaginal sonography in gynecologic examination. Methods A total of 8869 female subjects were assigned to the aged group ( ≥ 56 years old,n = 1406 ), middle group ( 36-55 years old, n = 4801 ), and young group ( ≤ 35 years old, n = 2662 ).Transvaginal sonography was used for uterus and adnexa scanning in these participants, and the results were analyzed. Results Of 4207 ( 47.44% ) detected patients,uterine leiomyoma ( n = 2285, 25.76% ),Nabothian cyst (n = 1126,12. 69% ) ,adnexal cyst (n = 324,3.65%) ,ovarian endometrial cyst (n = 131,1.47% ) .and adenomvos ( n = 129.1.45% ) were the most commonly seen gynecopathy. For the aged,middle, and young group, the gynecopathy detection rate was 25.39%, 64.42%, or 28.44%,respectively. The detection rates of those five diseases were significantly different among the three groups (P<O. 05). For instance, the detection rate of uterine leiomyoma in the aged (37. 12% ) or middle ( 18. 78% ) group was significantly higher than the young group( 8. 98% ; both P < 0. 05 ) ; while the detection rates of Nabothian cyst, adnexal cyst, and ovarian endometrial cyst in the young or middle group were sitnificantly higher than the aged group(all P<0.05).Conclusions As a non-invasive test,transvaginal sonography could be easily used in gynecologic examination.