This issue of Emergency Medicine Clinics guest edited by Drs. Kathleen Wittels and Sara Sommerkamp focuses on OB/GYN emergencies. It features article topics such as: Emergencies in early pregnancy, Hypertension in pregnancy, Complications in late pregnancy, Trauma in pregnancy, Cardiovascular disasters in pregnancy, Precipitous and difficult deliveries, Ultrasound in pregnancy, and Gynecologic infections.