Subchorionic hemorrhage and subchorionic hematoma are the most common cause of vaginal bleeding in patients who are 10 to 20 weeks gestational age and make up about 11% of cases.

Should I worry about Subchorionic hemorrhage?

Even though subchorionic bleeding doesn't pose an immediate threat like other types of vaginal bleeding, you should still follow up with your doctor. Call your doctor whenever you experience any bleeding or spotting. If the cause is unknown, an ultrasound may be performed to rule out hematoma.

Is a subchorionic hematoma considered high risk?

Small and moderate hematomas often go away on their own. Larger hematomas are more likely to cause problems. There is a higher risk if the subchorionic hematoma is detected in the first 20 weeks of your pregnancy. You should seek treatment as soon as possible for the best possible outcome.