Association Between First-Trimester Subchorionic Hematomas and Adverse Pregnancy Outcomes After 20 Weeks of Gestation in Singleton Pregnancies

OBJECTIVE:To assess the association of first-trimester subchorionic hematomas with pregnancy outcomes after 20 weeks of gestation in women with singleton pregnancies.METHODS:We conducted a retrospective cohort study of all women with singleton pregnancies presenting for prenatal care before 14 weeks