What are the symptoms of placental abruption?

We are often very happy about pregnancy, but pregnant women need to go through the hardship of ten months of pregnancy, and various adverse phenomena are likely to occur during this period, which can easily pose a threat to the baby and the pregnant woman, especially placental abruption. So what are the symptoms?

Grade I: Mainly characterized by external bleeding, more common during delivery, with a small area of ​​placental detachment, often no abdominal pain or mild abdominal pain, and no obvious signs of anemia. Abdominal examination shows a soft uterus, a size consistent with the gestational age, a clear fetal position, and a normal fetal heart rate. Postpartum examination shows blood clots and pressure marks on the maternal surface of the placenta, which can be used for diagnosis.

Grade II: The placenta is detached from about 1/3 of the surface, and there is often sudden and persistent abdominal pain, low back pain or back pain. The degree of pain is proportional to the amount of blood accumulated behind the placenta. There is no vaginal bleeding or the amount of bleeding is light, and the degree of anemia is inconsistent with the amount of vaginal bleeding. Abdominal examination showed that the uterus was larger than the gestational age, and the retroplacental hematoma at the fundus was enlarged and elevated. There was obvious tenderness at the placenta attachment site, uterine contractions were intermittent, the fetal position was palpable, and the fetus was alive.

Grade III: The placental detachment surface exceeds 1/2 of the placental area, and the clinical manifestations are more severe than those of Grade II. Symptoms of shock may include nausea, vomiting, pale complexion, cold and clammy limbs, weak pulse, and decreased blood pressure, and the degree of shock is mostly proportional to the loss of maternal blood. Abdominal examination revealed that the uterus was as hard as a board, could not relax during the intervals between contractions, the fetal position was unclear, and the fetal heartbeat disappeared. If there is no coagulation dysfunction, it belongs to IIIa; if there is a coagulation dysfunction, it belongs to IIIb.