目的:对比分析<3cm子宫粘膜下肌瘤腹部和阴道超声诊断结果。方法:选取我院在2014年9月-2015年9月实施诊断及治疗的50例子宫粘膜下肌瘤患者,分成两组,其中对照组和观察组患者分别实施腹部超声和阴道超声诊断,对比诊断结果。结果:观察组患者的临床诊断准确率高于对照组,差异对比显著P<0.05。结论:阴道超声在<3cm子宫粘膜下肌瘤诊断准确率高于对照组,可以在临床推广。 Objective: To compare the results of abdominal and vaginal ultrasonography in <3cm uterine submucosal fibroids. Methods: Fifty cases of uterine submucosal fibroids who were diagnosed and treated in our hospital from September 2014 to September 2015 were divided into two groups. The patients in the control group and observation group were diagnosed by abdominal ultrasonography and vaginal ultrasound respectively. diagnostic result. Results: The accuracy of clinical diagnosis in observation group was higher than that in control group, the difference was significant (P <0.05). Conclusion: The diagnostic accuracy of vaginal ultrasound in <3cm uterine submucosal fibroids is higher than that of the control group, which can be used in clinic.