Post-medical abortion recheck echogenic mass 28 * 9 to be important. The presence of an echogenic mass in the uterine cavity after a medical abortion suggests that there is a high level of intrauterine residue, which needs to be combined with the time of the post-medical abortion recheck, the amount of bleeding, the level of HCG, the degree of pain in the abdomen, etc., to determine the severity of the disease and to treat it. If the ultrasound review is more than 10 days after the medical abortion and the echogenic mass is 28＊9mm, it is recommended to clear the uterus for treatment. If the bleeding is heavy and the echogenic mass on ultrasound is 28＊9mm, it is necessary to clear the uterus immediately to remove the residue and stop bleeding. If the HCG value is high and there is an echogenic mass in the uterine cavity, it is recommended to remove the uterus and send the scrapings to the pathologist to check whether there is a possibility of trophoblastic disease. Echo mass after medical abortion, need to go to the hospital in time for treatment.