1. Threatened abortion is characterized by a small amount of vaginal bleeding before 8 weeks of pregnancy, followed by paroxysmal lower abdominal pain or low back pain. Gynecological examination showed that the cervix was not opened, the fetal membrane was not broken, the pregnancy products were not discharged, and the uterus size was consistent with the number of menopausal weeks. After rest and treatment, some patients got better. If the amount of vaginal bleeding increases or the pain in the lower abdomen intensifies, it may develop into dystocia abortion.

2. Inevitable abortion means that abortion is inevitable. It developed from threatened abortion. At this time, the amount of vaginal bleeding increased, paroxysmal lower abdominal pain aggravated or vaginal effusion (rupture of fetal membrane). Gynecological examination shows cervical dilatation, and sometimes embryonic tissue or fetal sac is blocked in the cervix. The size of uterus is the same as or slightly smaller than the number of menopausal weeks. At this time, the uterine contraction gradually intensified and continued. Pregnancy tissue may be partially or completely expelled and develop into incomplete or complete abortion.

3. Incomplete abortion means that part of the pregnancy product is discharged from the body and part is left in the uterine cavity, which is caused by inevitable abortion. Because the pregnancy product remains in the uterine cavity, it affects uterine contraction, leading to continuous uterine bleeding, and even hemorrhagic shock due to excessive bleeding. During gynecological examination, the cervix dilates and blood continuously flows out of the cervix. To some extent, we can see that placental tissue is blocked in the cervix, or some pregnancy products have been discharged from the vagina, while some remain in the uterine cavity. Generally speaking, the uterus is less than the number of menopausal weeks.

4. Complete abortion means that all pregnancy products are discharged, vaginal bleeding gradually stops, and abdominal pain gradually disappears. Gynecological examination: the cervix has been closed and the uterus is close to normal size.

5. Attempted abortion means that the embryo or fetus has died and stayed in the uterine cavity, but it has not been naturally discharged. Also called early pregnancy embryo suspension. After the death of the embryo or fetus, the uterus no longer grows and contracts, and the early pregnancy reaction disappears. If you have reached the second trimester of pregnancy, the pregnant woman's abdomen will not increase and the fetal movement will disappear. Gynecological examination, the cervix is not open, the uterus is less than the number of menopausal weeks, and the texture is not soft. No fetal heart rate was heard.

6. Abortion infection In the process of abortion, if vaginal bleeding lasts too long, staying in the uterine cavity or illegal abortion may cause intrauterine infection. In severe cases, infection can spread to pelvic cavity, abdominal cavity and even the whole body, accompanied by pelvic inflammatory disease, peritonitis, sepsis and septic shock, which is called abortion infection.