Missed abortion

Missed abortion: also known as missed abortion or stillbirth. Refers to those who have died of the embryo and remain in the uterine cavity, and the pregnancy products are usually excreted within 1 to 2 months after the onset of symptoms. Therefore, it is stipulated that those who have not spontaneously discharged within 2 months after the embryo stops developing are called missed abortion. Most pregnant women have a threatened abortion during early pregnancy, after which the uterus no longer grows, but gradually shrinks, and it is not as soft as normal pregnancy. The pregnancy test changed from positive to negative, and the placenta mechanization was closely adhered to the uterine wall, making it difficult to separate. On the other hand, due to insufficient sex hormones, the uterine contractility is reduced, and it is difficult to excrete the uterine cavity. After the embryo dies, the placenta dissolves, producing hemolytic enzymes into the mother's blood circulation, causing microvascular coagulation and consuming a large number of coagulation factors. The longer the period of uterine cavity retention, the greater the possibility of causing coagulation dysfunction. In recent years, B-ultrasound has been widely used in clinical practice, and the fetal sac and fetal bud can be detected at 6-7 weeks after menopause. If you suspect that the embryo has stopped developing, you can use B-mode observation to make a diagnosis and treatment in time. Therefore, some people have mentioned whether to use the term miscarriage again, but the clinical symptoms are not obvious, did not attract the patient's attention, when the embryo died, the uterine cavity was longer.