- Also: subchorionic hematoma
- Also: SCH
Subchorionic hemorrhage, often identified during early pregnancy ultrasounds, refers to a collection of blood that forms between the gestational sac and the uterine wall, or between the placenta and the uterine wall. It's a finding that can bring a lot of questions and sometimes, a fair amount of worry.
What it is
This collection of blood, also known as a subchorionic hematoma or SCH, is a common occurrence. It's found in a small percentage of first-trimester ultrasounds and is considered the most frequent cause of bleeding in early pregnancy. Essentially, it's a small separation where the placenta meets the uterus, leading to a localized bleed.
For many, these hematomas are small and tend to resolve on their own as the pregnancy progresses. However, larger hematomas can carry a slightly increased risk of certain outcomes, such as miscarriage in early pregnancy, or preterm labor and abruption later on. It's a spectrum, and your care team will help you understand where your specific situation falls.

