Thanks for writing to us.Placenta previa
is a condition in which the placenta grows in the lowest part of the womb (uterus
) , instead of the normal upper portion, and covers all or part of the opening to the cervix
, the placenta moves as the womb stretches and grows. It is very common for the placenta to be low in the womb in early pregnancy. But as the pregnancy continues, the placenta moves to the top of the womb. By the third trimester, the placenta should be near the top of the womb, so the cervix is open for delivery. So, please post your exact ultrasound
report for me to give you correct advice, and also do not worry as by the third trimester, the placenta migrates upwards in most cases.
The various degrees of severity in this condition are.
Marginal: The placenta is next to cervix but does not cover the opening.
Partial: The placenta covers part of the cervical opening.
Complete: The placenta covers all of the cervical opening.
So, risks depend on the exact report of your ultrasound.
Placenta previa occurs in 1 out of 200 pregnancies. It is more common in women who have:
Abnormally shaped uterus
Many previous pregnancies
Multiple pregnancy (twins, triplets, etc.)
Scarring on the lining of the uterus, due to history of surgery, c-section, previous pregnancy, or abortion
Women who smoke or have their children at an older age may also have an increased risk.
The main risk of placenta previa is sudden bleeding from the vagina.
Bleeding may be severe. It may stop on its own but can start again days or weeks later.
Other risks like preterm labour, growth restriction of baby, abnormal position of baby, increased chances of Cesarean section, increased blood loss after delivery etc are also seen.
General precautions are rest, avoiding exertion, strain and sexual activity, emergency visit to your obstetrician at the slightest bleeding or spotting, following proper medical advice
to avoid preterm labour etc.
Take care and feel free to ask for further clarifications.