Preeclampsia Symptoms
Preeclampsia is a serious pregnancy complication characterized by high blood pressure after 20 weeks, often accompanied by protein in the urine and organ involvement. It requires immediate medical attention.
What "Severe" Means Here
A "severe" rating means this symptom can sometimes signal an underlying condition that needs medical evaluation, even though it can also occur as an intense but ultimately benign version of a common pregnancy symptom. The safest approach is not to try to self-diagnose which case you’re in — contact your provider to describe what you’re experiencing so they can assess it properly, rather than waiting to see if it resolves on its own. Even if you’re fairly confident it’s "just" an intense version of something normal, providers would generally rather evaluate a severe symptom in person or over the phone than have a patient manage it alone at home.
Timing During Pregnancy
This symptom is most often reported later in pregnancy. Third-trimester symptoms are frequently related to the growing uterus placing more pressure on nearby organs, joints, or blood vessels, or to the body preparing for labor. Because late-pregnancy symptoms can occasionally overlap with signs of labor or other conditions specific to the third trimester, it’s worth reviewing the "when to call your doctor" guidance below a bit more closely as your due date approaches. Many providers also schedule more frequent visits in the third trimester specifically so that new or worsening symptoms can be caught and addressed quickly.
Common Causes
- Abnormal placental development causing blood vessel dysfunction
- Immune system abnormalities affecting placental implantation
- Risk factors include first pregnancy, prior preeclampsia, multiple gestation, obesity, chronic hypertension, diabetes, kidney disease, and autoimmune conditions
- Age (under 20 or over 35) increases risk
- Family history of preeclampsia
Remedies That May Help
Low-Dose Aspirin (if recommended)
For high-risk women, ACOG recommends low-dose aspirin (81 mg/day) starting at 12–28 weeks to reduce preeclampsia risk. Take only if your provider recommends it.
Blood Pressure Monitoring
Home blood pressure monitors allow tracking between appointments. Your provider will advise on target readings.
Rest on Your Left Side
Left-lateral positioning improves kidney perfusion and blood pressure in women with hypertension.
Limit Salt Intake
While not proven to prevent preeclampsia, avoiding excessive sodium supports blood pressure management.
When to Call Your Doctor
- Blood pressure reading of 140/90 mmHg or higher on two occasions
- Sudden severe headache that doesn't respond to Tylenol
- Visual disturbances: blurry vision, seeing spots or flashing lights, temporary loss of vision
- Sudden significant swelling of the face, hands, or feet
- Upper right abdominal pain or pain under your right ribs
- Rapid weight gain of more than 2–3 lbs in a week (from fluid)
- Nausea and vomiting that is new in the second or third trimester
Warning Signs That Always Warrant Immediate Care
Regardless of the specific symptom you’re looking up, general ACOG and CDC guidance is to seek immediate medical attention — call your provider’s urgent line, go to labor and delivery, or go to the ER — if you experience any of the following:
- Vaginal bleeding that is heavy, bright red, or accompanied by pain
- Severe or persistent abdominal or pelvic pain
- A severe headache that doesn’t improve with rest, water, or over-the-counter pain relief
- Sudden swelling of the face, hands, or feet, especially paired with a headache or vision changes
- Vision changes such as blurring, seeing spots, or temporary vision loss
- A noticeable decrease in your baby’s movement compared to their usual pattern
- Fever of 100.4°F (38°C) or higher
- Fluid leaking or gushing from the vagina
- Regular, painful contractions before 37 weeks
- Difficulty breathing, chest pain, or a rapid heartbeat
- Persistent vomiting that keeps you from keeping down fluids
- Severe itching, especially on the palms and soles, which can sometimes indicate a liver-related condition
This list reflects general warning signs recognized across pregnancy, not just for this specific symptom — when in doubt, it’s always appropriate to call your provider and describe what you’re experiencing rather than waiting to see if it resolves.
General Tips for Managing Pregnancy Symptoms
Alongside any symptom-specific remedies above, a handful of general habits tend to help with a wide range of pregnancy symptoms and are worth keeping in mind throughout your pregnancy:
- Stay consistently hydrated — many pregnancy symptoms, from headaches to fatigue to constipation, are worsened by even mild dehydration.
- Keep taking your prenatal vitamin as directed, since nutrient gaps (particularly iron, calcium, and vitamin D) can compound certain symptoms.
- Prioritize rest and sleep where you can, including resting on your side in later pregnancy, which supports circulation to the uterus.
- Stay gently active if your provider has cleared you for exercise — light movement like walking or prenatal yoga can ease many common complaints.
- Eat smaller, more frequent meals rather than three large ones, which can help with digestive symptoms and blood sugar swings.
- Keep a running list of questions between appointments so nothing gets forgotten when you do see your provider.
None of these general habits replace medical evaluation for a specific concerning symptom, but they’re a reasonable baseline to maintain throughout pregnancy regardless of what you’re experiencing.
Frequently Asked Questions
What is the difference between gestational hypertension and preeclampsia?
Gestational hypertension is high blood pressure alone (after 20 weeks) without organ involvement. Preeclampsia involves high blood pressure plus signs of organ damage — protein in urine, liver dysfunction, kidney dysfunction, or neurological symptoms.
Can preeclampsia develop suddenly?
Yes — preeclampsia can develop rapidly. Regular prenatal monitoring catches early signs, but symptoms can escalate quickly, which is why warning signs should never be ignored.
Is preeclampsia curable?
The only cure for preeclampsia is delivery. Management before delivery focuses on stabilizing blood pressure and monitoring the baby. After delivery, most women fully recover.
What is HELLP syndrome?
HELLP is a severe complication of preeclampsia involving Hemolysis, Elevated Liver enzymes, and Low Platelets. It is a medical emergency.
Can I prevent preeclampsia?
For high-risk women, low-dose aspirin significantly reduces risk. Maintaining a healthy weight before pregnancy, treating chronic conditions, and attending all prenatal appointments also helps.
How do I know if a pregnancy symptom needs medical attention?
As a general rule, contact your provider if a symptom is severe, sudden, rapidly worsening, or paired with other concerning symptoms like fever, vision changes, or reduced fetal movement — even if it doesn’t appear on a specific warning-signs list. You know your body best, and providers consistently say they’d rather field a call about something that turns out to be normal than have a patient wait through something that wasn’t.
Should I track this symptom before my next appointment?
It’s a good habit to jot down when a symptom started, how often it occurs, roughly how intense it feels, and anything that seems to make it better or worse. This kind of record is genuinely useful to your provider — it turns a vague "I’ve been having some discomfort" into something they can actually assess for patterns, and it can help you notice on your own whether a symptom is improving, staying steady, or getting worse over time.
Is it normal for pregnancy symptoms to come and go?
Yes — many pregnancy symptoms fluctuate day to day or even hour to hour, influenced by things like hydration, activity level, meal timing, and simple positional changes. Fluctuation on its own usually isn’t a red flag. What’s more worth flagging to your provider is a symptom that is steadily trending worse over days or weeks, or one that suddenly becomes much more intense than your usual pattern.