Placenta previa Symptoms

Clinical manifestations:

1. Symptoms in late pregnancy and repeated painless vaginal bleeding are the main symptoms of placenta previa. placenta previa is an abnormal position of the plant, when the lower uterine segment or cervix and the relationship between the changes in the placenta, that is, lower uterine segment extension or the expansion of the cervix and the placenta should not then make the corresponding changes, the result is the emergence of mutual displacement between the placenta and plant happened to divest parts of its rupture under the sinusoid, so the initial bleeding has stripped much of the region often, so bleeding small, such as the normal clotting mechanism, you can stop on its own. However, stripping can occur again, stripping an area of increased amount of bleeding increased, this can be repeated many times, but occasionally there is the first time that substantial bleeding who need emergency treatment. According to a general rule, where the bleeding time more than the number of early and repeated at the same time moderate amount of bleeding is often the complete placenta previa, bleeding often can be as early as 28 weeks, and even medium-term pregnancy that is, there is bleeding, bleeding that is sometimes a shock to enter the status. Marginal placenta previa bleeding time later, often at or after 36 weeks when labor side has less amount of bleeding; partial placenta previa is in between. Partial or marginal placenta previa are still part of membrane exposed to the cervical mouth, once the fetal membranes rupture, amniotic fluid fetal head rapidly declining spillover and direct pressure on the spin-off of the Department of placenta previa, bleeding can stop. Although most patients have vaginal bleeding, but also a small number of complete placenta previa until full-term pregnancy but no vaginal bleeding, but once the bleeding, the volume are a lot of the. Its systemic symptoms and amount of bleeding, such as repeated many times but not more than amount of bleeding, it has little influence on the patients, bleeding volume, such as anemia can be caused by an acute bleeding very many can happen hemorrhagic shock, severe cases can be the death of many severe anemia such as bleeding can occur fetal distress, and even intrauterine fetal death.

2. Many amount of bleeding in patients with signs, symptoms of anemia can occur. Abdominal examination the uterus size and time in line with menopause. Fetus due to lower uterine segment placenta has occupied the impact of its decline, often high-floating and there is often accompanied by abnormal fetal position, mainly breech.

3. Placenta previa where the placenta covers the cervix classification within the mouth or inside the mouth close to the cervix are called placenta previa, placenta previa has two kinds of classification:

(1) 4 Classification:

① complete placenta previa (complete placenta previa): cervical internal os completely covered by placenta.

② partial placenta previa (partial placenta previa): cervical part of the placenta within the population covered by

③ marginal placenta previa (marginal placenta previa): the edge of the placenta is located just beside the cervix dilated.

④ low placenta home (low-lying placenta): placenta plant in the lower uterine segment, which did not reach the edge of the cervix inside the mouth, but with it on a very near

(2) three classifications:

① complete placenta previa (complete placenta previa): cervical internal os completely covered by placenta.

② partial placenta previa (partial placenta previa): cervical part of the placenta inside the mouth covered.

③ marginal placenta previa (marginal placenta previa): placenta plant in the lower uterine segment, the edge does not go beyond the cervix inside the mouth for more than two kinds of classification, because the placenta home at a low clinical impact on small and marginal placenta previa easy confusion led to the current classification of three commonly used

Late pregnancy in labor because of population expansion after the cervix, the mouth can make the cervix and the relationship between the changes in the placenta, such as labor before the marginal placenta previa, cervical mouth, after labor to expand and become part of placenta previa, so their classification should be based on treatment pre-inspection may be the last time.

To the edge of the placenta and the cervix in the mouth of the relationship between placenta previa will be divided into 3 types

Complications:

Anemia such as an acute bleeding very many can happen hemorrhagic shock, severe cases can be death. Severe anemia, fetal distress can occur, and even intrauterine fetal death