Preeclampsia is a leading cause of premature birth. It affects the arteries that carry blood to the placenta, which provides oxygen and nutrients to the baby and can also cause placental abruption (when the placenta separates from the lining of the uterus), resulting in heavy bleeding.

The only cure for preeclampsia is delivery of the baby, and that’s the quandary for obstetricians. If the baby is delivered very early to save the mother, the baby is at risk for health complications due to prematurity. If birth is postponed, the mother could develop serious life-long problems, have a seizure or die.

Unfortunately, doctors aren’t sure what causes preeclampsia. Those who may be at risk include women with high blood pressure, a family history of high blood pressure or other health conditions, obesity and age. Treatment includes bed rest, medication and vigilant care by a medical team to watch for any change in mother or baby.