Pregnancy and Birth

Preview this topic section

Each condition includes a free overview and clinical definition. Plans unlock the full Step 1 details.

Pregnancy and Birth conditions

EclampsiaEclampsia is a severe pregnancy complication characterized by seizures in a woman with preeclampsia, involving hypertension and proteinuria after 20 weeks gestation.Ectopic PregnancyEctopic pregnancy is the implantation of a fertilized egg outside the uterine cavity, often in the fallopian tube, causing abdominal pain and vaginal bleeding.Gestational HypertensionGestational hypertension is new-onset high blood pressure after 20 weeks of pregnancy without proteinuria, increasing risk for preeclampsia and fetal complications.HELLP SyndromeHELLP Syndrome is a severe pregnancy complication involving hemolysis, elevated liver enzymes, and low platelets, often linked to preeclampsia and liver dysfunction.OligohydramniosOligohydramnios is a pregnancy complication marked by low amniotic fluid volume, often linked to fetal urinary tract issues or placental insufficiency.Placenta PreviaPlacenta Previa is a pregnancy complication where the placenta covers the cervix, causing painless vaginal bleeding and risks during delivery.Placental AbruptionPlacental abruption is the premature separation of the placenta from the uterus, causing vaginal bleeding, abdominal pain, and fetal distress during pregnancy.PolyhydramniosPolyhydramnios is an excess accumulation of amniotic fluid during pregnancy often caused by fetal anomalies, maternal diabetes, or impaired fetal swallowing.Postpartum HemorrhagePostpartum hemorrhage is excessive bleeding after childbirth caused by uterine atony, trauma, retained placenta, or coagulation disorders, leading to hypovolemic shock.PreeclampsiaPreeclampsia is a pregnancy disorder marked by hypertension and proteinuria after 20 weeks, caused by abnormal placental vascular remodeling and endothelial dysfunction.Supine Hypotensive SyndromeSupine hypotensive syndrome occurs when the gravid uterus compresses the inferior vena cava, causing decreased venous return and maternal hypotension in late pregnancy.Twin-Twin Transfusion Syndrome (TTTS)Twin-Twin Transfusion Syndrome (TTTS) is a prenatal condition where abnormal blood vessel connections cause uneven blood flow between monochorionic twins.Uterine RuptureA uterine rupture is a tear in the uterine wall often linked to prior cesarean scars, causing severe maternal and fetal complications during labor.Vasa PreviaVasa Previa is a pregnancy complication where fetal blood vessels cross the cervical opening, risking vessel rupture and fetal hemorrhage during labor.