Preeclampsia is high blood pressure that some women get during pregnancy. It affects the kidneys, liver, brain, and placenta. It can cause a headache that won't go away, vision problems, belly pain, and swollen hands and face.

Preeclampsia can be treated with bed rest, medicine, and close monitoring. If not treated, it can be deadly for the mother and baby.

Preeclampsia usually goes away after the baby is born.