What causes Placenta Previa?
About 20-40% of all pregnancies have some form of placenta
previa in the early stages. It usually resolves itself,
and only in 5% of women is it present at term. Placenta
previa seems to be more prevalent in women who have
had placenta previa before, in women having babies at
an older age, in women who smoke, in women who have
had several pregnancies before, in women who have had
scarring on the uterus lining during a previous c-section
or abortion, and in a multiple pregnancy. It is also
known to occur in a pregnancy where the uterus or placenta
is abnormally developed.
Placenta previa occurs in 1 out of 200 pregnancies.
Usually with sufficient rest and medical attention the
problem is known to subside on its own with no repercussions
on delivery later on.