The endometrial echogenicity of ultrasound examination is common for the following reasons.1. When the menstrual period is not yet clean, the endometrium has not been completely repaired, so ultrasound examination will find that the endometrium echogenicity is not even.2. When the endometrium is diseased, the endometrium echogenicity is not even, for example, through the ultrasound examination, it will be found that there is an abnormal echogenicity in the endometrium, and the echogenicity is not even. It is often caused by endometrial pathology, it is best to do diagnostic scraping, the scraped tissue will be sent to the pathology laboratory, according to the results of the treatment. 3, due to endometrial polyps, or due to endometrial inflammation caused by the endometrial lining is unevenly thin and thick, it is recommended that the best in this case is the hysteroscopy, diagnostic scraping under the hysteroscope, according to the results and then give treatment.