Does smoking increase the risk for placenta previa?

Yes. Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US.
Yes. Several studies have confirmed that maternal smoking increases the risk of placenta previa, providing another reason to quit before getting pregnant!

Related Questions

If I have placenta previa, when am I most likely to bleed?

Hopefully @ delivery. If your previa never resolves, i hope you have bleeding only at your c-section. Most docs will give steroids at 24 weeks, perform serial ultrasounds to see if it resolves, and performs an abdominal delivery at 37 weeks if still present. Report any bleeding since an intial bleed may "herald" the start of hemorrhage, and listen to your doc. Earlier delivery may be needed if bleeding develops. Read more...
Third trimester. Most cases of placenta previa wither resolve or start bleeding by the third trimester (>28 weeks). Avoid all ssris, aspirin-like drugs (nsaids, motrin, aleve, advil) and only take regular tylenol (acetaminophen) during pregnancy. Avoid intercourse and heavy lifting/exercise until delivery or resolution of your placenta previa. Serial ultrasounds with an experienced maternal-fetal medicine specialist are warranted! Read more...

I was diagnosed with marginal placenta previa. Will it move?

Possibly! Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more...

15 weeks and just diagnosed with placenta previa. Should I be worried?

Optimistic. The uterus has a lot of growing to do from 15 weeks on. The placenta can migrate away from the cervix as the uterus grows. If you experience vaginal bleeding you should see your doctor but you should be optimistic that the condition will very likely resolve on its own. Read more...
Give it time. Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more...

Is there anything I can do to help a placenta previa--massage, exercises, etc.?

No. There is nothing that you can do to change the location of the placenta. If it is covering the cervix, you will need to be delivered by c section. Intercourse needs to be avoided due to the risk of significant bleeding. A partial previa diagnosed early in the pregnancy may improve or resolve completely as the uterus continues to grow. A complete previa is unlikely to resolve. Read more...
Regular OB Care. Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US. Read more...

What to do if I have placenta previa and now a tear in placenta how bad can it be?

Serious... Placenta previa is a serious complication of pregnancy. It can result in bleeding that can be anywhere from annoying to life-threatening for you or baby. When you deliver, you will need a c/section. Most of the time, women with previa are delivered early by c/section. This avoids labor and cervical dilation. Best wishes! Read more...