Nowadays, many couples have a second child, and after successfully giving birth to their first child, women may become complacent when pregnant with their second child, which can lead to some risks. Some women experience placental abruption during the process of having a second child. So, why does placental abruption occur in a first natural birth and a second natural birth?
There is no direct relationship between vaginal delivery during the first pregnancy and placental abruption during the second pregnancy for female friends. There are many reasons that can cause placental abruption, and the most common one is abdominal injury. When a woman is pregnant, if her abdomen is impacted by external forces, it is easy to cause the rupture and bleeding of the decidual blood vessels, which can lead to placental abruption.
If pregnant women suffer from conditions such as gestational hypertension and chronic kidney disease, it is easy to cause spasms and blockages in the decidua arterioles, which can lead to rupture and bleeding, resulting in placental abruption. In medical statistics, vascular disease during pregnancy is the most important cause of placental abruption in women.
In the late stages of pregnancy, if female friends lie on their back for a long time, the swollen uterus will compress the shape of the inferior vena cava, causing obstruction of venous return. This not only causes congestion in the pelvic and uterine veins, but also increases venous pressure. The ultimate result is excessive congestion of the veins in the decidua, which can easily cause rupture and bleeding, leading to placental abruption.
