The purpose of vaginal ultrasound is to check whether the foreign body is completely discharged and whether there is blood in the uterine cavity, etc. If the echogenicity of the endometrium is not uniform under ultrasound, it means that the thickness of the endometrium is not uniform, which may be caused by the endometrium not fully recovered, residue in the uterine cavity, inflammation, etc., and needs to be identified and treated accordingly. 1. The endometrium may not be fully repaired at this time, and the endometrial echogenicity is not uniform, so you can continue to observe and follow up regularly, and use estrogen to help recovery when the effect is not good; 2. menstruation: menstruation will occur about 1 month after the end of surgery, when the endometrium is shed, and vaginal ultrasound is also available when menstruation has just ended; 3. uterine cavity residues: when the suction is not clean, the uterine cavity may The presence of embryonic tissue, resulting in uneven echogenicity, can be observed to see if it can be actively discharged, long time not discharged or vaginal bleeding, severe abdominal pain, timely clearance treatment; 4, inflammation: such as endometritis, inflammation can lead to endometrial thinning or thickening, endometrial echogenicity is not uniform, often accompanied by lower abdominal pain, fever, abnormal vaginal discharge, etc., can be used cephalosporin, metronidazole and other antibiotics anti-infection 5, other: the combination of endometrial cancer, endometrial polyps, etc. can cause varying thickness of the endometrium, usually with corresponding symptoms such as bleeding, wasting, abdominal pain, etc. Diagnostic scraping is feasible, send pathological examination to determine the type of disease, and then treatment.