What is the cause of placental abruption?

summary

It is very necessary for expectant mothers to understand placental abruption. After understanding the etiology of a disease, they can not only take daily preventive measures, but also fundamentally carry out corresponding treatment for patients. Placental abruption is a disease that many pregnant women may encounter, and the influence is quite large. So in daily life, what are the main causes of placental abruption in pregnant women? Now let's talk about it.

What is the cause of placental abruption?

First: uterine venous pressure suddenly increased: late pregnancy or after labor, pregnant women take a long time supine position, can occur supine hypotension syndrome. At this time, because the huge pregnancy uterus oppresses the inferior vena cava, the amount of return blood is reduced, the blood pressure is decreased, but the uterine vein is congested, the venous pressure is increased, resulting in blood stasis or rupture of decidual vein bed, resulting in partial or total placental detachment from the uterine wall.

Second: mechanical factors: trauma, correction of fetal position by external inversion, too short umbilical cord or umbilical cord around the neck, decrease of fetal presentation during delivery may promote placental abruption. In addition, the first fetal delivery of twin pregnancy is too fast or the amniotic fluid is too much than the amniotic fluid outflow is too fast when breaking the membrane, so that the intrauterine pressure is suddenly reduced, the uterus suddenly shrinks, and the placenta can also be separated from the uterine wall.

Third: vascular disease: placental abruption pregnant women complicated with severe pregnancy induced hypertension, chronic hypertension and chronic kidney disease, especially have systemic vascular disease in the majority. When the basilar decidual spiral arterioles spasm or harden, the distal capillaries are ischemic and necrotic, resulting in rupture and bleeding. The blood flows to the basilar decidual layer to form a hematoma, resulting in the separation of the placenta from the uterine wall.

matters needing attention

The above three factors are the key factors leading to people suffering from placental abruption. I hope that after the introduction of this article, we can make the most suitable preventive measures according to our daily life, and at the same time, the patients can also analyze which cause of their disease, so as to better choose the treatment measures.