Color ultrasound cannot detect miscarriage. If the woman’s body recovers well after the abortion, there is no intrauterine residue, and the uterus recovers well, generally through the color ultrasound examination can not determine the previous abortion. If the woman’s physical recovery is not very good to have an incomplete abortion, the uterine cavity has the embryonic tissue residue, the uterus is not good uterine cavity blood, has caused the uterus, this situation through the ultrasound examination can be judged to have had a miscarriage. Usually must do a good job of health care, it is best not to have multiple abortions, after the abortion timely review ultrasound, to understand the uterine cavity with or without tissue residue, so as to avoid serious damage to the uterus and adnexa, and also need to rest, to promote the body’s recovery.