It is generally not possible to tell by doing ultrasound half a year after the miscarriage, as the endometrium has already been repaired by this time. After the abortion, the woman will resume normal menstruation in about one to two months, and the endometrium will gradually return to the normal state, so it is not possible to tell if you have had an abortion through ultrasound examination. Abdominal ultrasound mainly looks at the structure of the organs and some structural lesions, and cannot find out whether a woman has had an abortion. Through the physical examination, to observe the vulva, cervix changes can be seen whether the abortion. In small-month miscarriages, the cervix is not dilated, the cervix is not lacerated, and usually cannot be detected. In large-month miscarriages, the cervix needs to be dilated, and the cervix will show menstrual changes, which may indicate a history of miscarriage.