Gynecological ultrasound echo is uneven according to different parts, there may be different diseases, endometrial echo is uneven for endometrial polyps, endometrial inflammation, etc.; myometrial echo is uneven for uterine fibroids, uterine adenomyosis and so on. 1. Uneven endometrial echogenicity: (1) endometrial polyps: endometrial polyps are caused by estrogen stimulation or inflammatory stimulation of the uterus local mesenchymal overgrowth of glandular epithelium, ultrasound shows more hyperechoic, and endometrial echogenicity has a difference, which is manifested in the lack of uniformity of the echogenicity. (2) endometrial inflammation: endometrial inflammation is caused by pathogens invading the endometrium, the endometrium of the inflammation may show high echogenicity, which is different from the normal endometrial echogenicity, and the echogenicity of the ultrasound is not uniform. 2. Myometrial echogenicity is not uniform: (1) Uterine fibroids: Uterine fibroids are benign tumors formed by the proliferation of uterine smooth muscle tissues, which are mostly hypoechoic on ultrasound. If there is interstitial fibroids, the myometrium ultrasound echo will be uneven. (2) Adenomyosis: adenomyosis is mainly caused by endometrial glands and mesenchymal invasion of the myometrium, adenomyosis foci will show high echogenicity, compared with the normal myometrium, there will be myometrial ultrasound echogenicity is not uniform. If the ultrasound echoes are not homogeneous, it is recommended that the patient be further evaluated in the hospital and treated in the light of the heterogeneity of the echoes of the different parts of the uterine muscle and the accompanying clinical symptoms.