Partial Placenta Previa: Activity Restrictions & What to Expect

Question
I'm currently pregnant with my first baby. At my ultrasound two weeks ago (week 19), I found out that I have partial placenta previa, but was told that I don't have to restrict any activities and to just watch out for bleeding.

I've heard that some women were told they should be on pelvic rest and restrict some physical activities. Would it be best to take some precautions and it easy on some physical activities, or should I just resume activities normally (swimming, walking, yoga) ? Would air travel (especially long-haul flights) be okay around the end of the second trimester or beginning of the third trimester?

Thanks!

Answer
Dear Lily,

First... sorry about the delay in answering... nasty computer virus that I am hoping is gone now.

Placenta previa is when the placenta implants low in the uterus and either partially or completely covers the internal cervical opening. There are three degrees - a total placenta previa would be when the placenta completely covers the cervical opening, partial is just that - partially covers the opening, and then there is just low implantation of the placenta. The degree to which the placenta covers the opening is usually estimated in percentages - 100%, 75%, 30%, etc,...

When you bleed with a previa, it is usually because the placenta is unable to stretch to accommodate the changing shape of the uterus, particularly in that lower segment. Bleeding from a previa is quite serious. It is maternal blood that is lost, so the mom is in danger of hemorrhage. And because the placenta is often loosened, fetal oxygen supply can be compromised. This is why complete bedrest is ordered with many placenta previa diagnoses.

A very low-degree, partial placenta previa can sometimes correct itself as the uterus grows, and doctors will order the amount/type of restrictions based on the degree of severity and potential for self-correction. It sounds like maybe yours may not be a very high degree if absolutely no restrictions were placed on you at all. However, I would strongly suggest that, given your concerns and desire to err on the side of caution, have a discussion with your OB doctor about the actual degree of severity of the previa. And if you are more comfortable doing so, restrict yourself. :) There is certainly nothing wrong with a woman educating herself and taking control of her own body.

I hope this has helped you and answered your questions. I wish you well.

Brenda