Pre-eclampsia is a medical condition in which hypertension arises in pregnancy (pregnancy-induced hypertension) in association with significant amounts of protein in the urine. Up till now, experts don’t know the exact cause of preeclampsia and high blood pressure during pregnancy. But they have some reason and idea about preeclampsia.
1. Preeclampsia seems to start because the placenta doesn’t grow the usual network of blood vessels deep in the wall of the uterus. This leads to poor blood flow in placenta.
2. Preeclampsia may run in families. If your mother had preeclampsia while she was pregnant, you have a higher chance of getting it during pregnancy. You also have a higher chance of getting it if your baby’s father had high blood pressure.
3. The mother’s immune system may react the father’s sperm, the placenta, or the baby.
4. Already having high blood pressure when you get pregnant raises your chance of getting preeclampsia.
5. Problems that can lead to high blood pressure, such as obesity, polycystic ovary syndrome, and diabetes, could risk of preeclampsia.
6. Multiple pregnancy (twins or more).
7. Older than age 35.