Subchorionic Hemorrhage (SCH)

Definition - What does Subchorionic Hemorrhage (SCH) mean?

Subchorionic hemorrhage (SCH) is a type of vaginal bleeding that occurs during pregnancy, but is separate from the fetus. SCH occurs when the placenta detaches from the uterine wall, causing blood to pool between the placenta and the uterus.

The blood vacates the uterus through the vagina, causing the vaginal bleeding. The level of risk for the mother and fetus depends on the severity of the bleeding, and may require medical treatment. However, SCH rarely leads to miscarriage.

A subchorionic hemorrhage is also called a subchorionic hematoma or subchorionic bleeding.

FertilitySmarts explains Subchorionic Hemorrhage (SCH)

The chorion is a layer of membranes divide the embryo from the mother’s uterine wall during early pregnancy. When the placenta is disrupted, the bleeding impacts this layer of membranes, causing blood to pool. The leaking of this blood causes vaginal bleeding.

This type of bleeding is more common in the first trimester of pregnancy, and less common in the second or third. However, it is still a relatively rare condition. In many cases of SCH there is no vaginal bleeding, and the condition is typically asymptomatic. It may not be discovered until a medical professional spots it during an ultrasound. In cases where vaginal bleeding is more pronounced, it is possible to confuse SCH as miscarriage. However, ultrasound scans can easily detect and diagnose SCH.

Prognosis for a SCH depends on the severity and extent of the bleeding. Smaller hematomas are less dangerous, while larger hematomas may require treatment, including bed rest, avoiding sex and exercise, and taking hormonal medication. Women diagnosed with SCH will be monitored carefully by their physician until the bleeding subsides.

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