What is Preeclampsia?
Preeclampsia is a pregnancy complication that usually shows up after 20 weeks. It’s diagnosed based on a sudden rise in blood pressure, often along with protein in the urine, swelling, headaches, or blurred vision, though some people have no symptoms at all and find out purely through a routine check-up.
Early in pregnancy, the placenta is supposed to embed itself deeply into the mother’s blood supply, widening key arteries so blood can flow freely to the baby. In preeclampsia, that process doesn’t go quite right. The placenta doesn’t get the blood flow it needs, and in response it releases proteins into the mother’s bloodstream that disrupt how blood vessels function throughout her body, not just around the uterus. That’s part of why preeclampsia can touch the kidneys, liver, and brain.
Certain factors raise the odds of developing it, including a first pregnancy, a multiple pregnancy such as twins, chronic high blood pressure, diabetes, kidney disease, obesity, and a family or personal history of preeclampsia. For those considered high risk, many doctors recommend a low dose aspirin starting in the first trimester, since research has shown it can meaningfully lower the chances of developing the condition. Left untreated, preeclampsia can progress to eclampsia (seizures) or other serious complications, which is why it’s always actively treated rather than simply watched. The good news is that with the right monitoring and care, most cases are managed safely for both mother and baby.
Myth 1: Preeclampsia only affects the mother
It’s easy to assume the baby is somewhat protected since the condition is described in terms of the mother’s blood pressure and organs. However, the placenta is at the centre of the problem, and the baby depends entirely on the placenta for oxygen and nutrients. Reduced blood flow through the placenta can slow the baby’s growth, a condition doctors call foetal growth restriction, and in more severe cases, early delivery may be recommended to protect both mother and baby. Growth scans and monitoring during a preeclampsia diagnosis aren’t just about tracking the mother’s condition, they are also checking on the baby’s wellbeing too.
Myth 2: It’s caused by stress or being too anxious during pregnancy
This idea puts an unfair weight on expectant mothers. Preeclampsia has a physical origin in how the placenta attaches and develops early in pregnancy, a process that’s already underway long before most people even think to feel stressed about it. There is no established evidence that emotional stress on its own causes the condition. It’s worth saying clearly, there’s nothing an expectant mother did or felt caused this to happen.
Myth 3: There’s nothing you can do to lower your risk
While preeclampsia can’t always be prevented, risk can often be reduced for those who are more likely to develop it. Low dose aspirin, started in the first trimester under a doctor’s guidance, is recommended by major obstetric guidelines for people with high or multiple moderate risk factors, and has been shown in research to lower the odds of developing the condition. Managing existing conditions like chronic high blood pressure or diabetes before and during pregnancy also helps. None of these guarantee prevention, but it’s far from true that nothing can be done.
Myth 4: A preeclampsia diagnosis automatically means a C-section
Plenty of people hear the word preeclampsia and assume a surgical delivery is now inevitable. That’s not necessarily the case. Depending on how far along the pregnancy is, how severe the condition is, and how both mother and baby are doing, a vaginal delivery may still be entirely possible, sometimes with labour induced earlier than originally planned. The delivery method is a decision made based on the specific clinical situation, not an automatic rule tied to the diagnosis alone.
Myth 5: Preeclampsia and gestational hypertension are the same thing
These two terms get used interchangeably, but they’re not identical. Gestational hypertension refers to new high blood pressure that develops after 20 weeks without the additional signs of organ strain, like protein in the urine or liver and kidney involvement. Preeclampsia specifically involves that extra layer of organ involvement. Gestational hypertension can sometimes progress into preeclampsia, which is why even a diagnosis of gestational hypertension leads to closer monitoring, not just a shrug.
Myth 6: Magnesium sulfate is given to bring blood pressure down
Magnesium sulfate isn’t primarily a blood pressure medication. It is used to prevent seizures, the defining feature of eclampsia, the more severe progression of preeclampsia. Separate medications are used to manage blood pressure. The two are often given together during a severe case, which is likely how the confusion started, but they’re doing two different jobs.
Myth 7: It only happens to older mothers
Age of 35 or older is one recognised risk factor, which is likely where this belief comes from. But preeclampsia shows up across every age group, including people in their teens and twenties, particularly in a first pregnancy, which is itself a separate risk factor from age. Focusing only on age as a warning sign means overlooking a large share of people who are just as much at risk.
Preeclampsia is more common, more complex, and more misunderstood than most people realise. Understanding the real facts, rather than the myths, helps expectant mothers ask better questions and stay closely connected with their care team throughout pregnancy and the postpartum period.
This article is for general information and isn’t a substitute for medical advice. If you’re pregnant or postpartum and experience a severe headache, visual changes, upper abdominal pain, or sudden swelling, contact your doctor immediately.
