Subchorionic Hemorrhage Risk Factors and Considerations

Age-Related Considerations and Pregnancy Complications

• Women over 35 years of age have an increased baseline risk for pregnancy complications, including hypertensive disorders, and face compounded risks when subchorionic hemorrhage occurs 1, 2
• Older maternal age combined with bleeding disorders creates a multiplicative risk for adverse outcomes 2
• Short interpregnancy intervals in women over 35 years are associated with increased morbidity and mortality, particularly relevant if prior pregnancy involved subchorionic hemorrhage 1
• A history of hypertensive disorders of pregnancy increases the risk of persistent postpartum hypertension and metabolic syndrome 1
• Previous pregnancy complications, including prior pregnancy loss, confer a 3.86-fold increased risk of subsequent pregnancy complications 3
• Women with a history of cesarean delivery face dose-response increased rates of hemorrhage, adhesive disease, and surgical injury in subsequent pregnancies 1