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Subchorionic Hemorrhage

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Updated April 09, 2014

Written or reviewed by a board-certified physician. See About.com's Medical Review Board.

Bleeding from a subchorionic hemorrhage can be diagnosed as a threatened miscarriage.

Bleeding from a subchorionic hemorrhage can be diagnosed as a threatened miscarriage.

Photo © A.D.A.M.
Definition: Bleeding between the amniotic sac (membranes) and the pregnancy, usually found near the placenta. This is something that may or may not be associated with an increased risk of miscarriage, depending on the size, location, symptoms and when it is found in the pregnancy.

Subchorionic hemorrhage happens in about 1% of all pregnancies, but it is the cause of about 20% of all the bleeding in the first trimester. About a quarter of women will experience bleeding in the first trimester.

A subchorionic hemorrhage may cause bleeding that is visible. It can be varying in quantity from spotting in pregnancy to heavy bleeding. The blood can be pink in color to bright red or brown. Ultrasound is used to diagnose the bleeding.

Source:

Subchorionic Hemorrhage. Avneesh Chhabra, MD. eMedicine. Last accessed January 25, 2014

Also Known As: subchorionic hematoma
Examples:
I had an ultrasound when I was bleeding and diagnosed with a threatened miscarriage, they said I had a subchorionic hemorrhage.

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