Understanding Subchorionic Bleeding in Early Pregnancy: Causes, Effects & Management

Question
Hi, I have had one child when I was 19, and am now 31 and am 9 weeks pregnant again. I have had lots of spotting and a week ago I had heavier bleeding, now just back to spotting. My Dr. said it was a subchronic bleed and I should be on bed rest. My ques. is what is a subchornic bleed and how does this effect me and my baby? Forgot to add that my ultrasound at 7 weeks looked good, strong heartbeat and yolk sac was seen.

Answer
A subchorionic bleed is a sequestration of blood within the folds of the developing placenta, usually seen between 8-12 weeks gestation. It usually has no effect on  the baby or on the pregnancy and dissipates on its own within a few weeks. You can follow its disappearance by serial sonograms. We always suggest bedrest if you have vaginal bleeding. However, studies have shown that bedrest does nothing to help or hinder the problem. If you are more comfortable on bedrest, continue to do so until the bleeding stops. If you do not want to be on bedrest, you do not have to be on bedrest. There will be no difference whether you are on bedrest or not.