HELLP Syndrome: What It Is and How to Spot It Early

If you've just heard the words "HELLP syndrome" from your doctor, or you've seen them on a list of pregnancy complications, your heart rate has probably jumped a few notches. Totally fair. HELLP is a rare but serious pregnancy complication, and the name alone sounds like a cry for help.

Here's the reassuring part: doctors know how to spot HELLP and how to treat it. Knowing the signs puts you in a stronger position to speak up fast. So let's break down HELLP in pregnancy, without drowning you in medical jargon.

In this article: 📝

What is HELLP syndrome?

HELLP syndrome is a life-threatening condition that usually shows up in the second half of pregnancy or shortly after birth. The name is an acronym for what's happening in your blood and liver: [1]

• H – Hemolysis: Red blood cells are breaking down
• EL – Elevated Liver enzymes: A sign your liver is under stress
• LP – Low Platelets: The cells that help your blood clot are running low

As Senior Technical Advisor at Project HOPE, Rondi Anderson, a Certified Nurse-Midwife with a PhD in public health, puts it: "HELLP is an acronym for hemolysis (the breakdown of red blood cells), elevated liver enzymes, and low platelets. This means that women become anemic, their livers stop functioning well, and the risk of bleeding into tissue becomes a concern."

Doctors first named HELLP in 1982, and most experts see it as a severe form of preeclampsia (more on that relationship below). Some people get "partial" HELLP, where only one or two of the three blood changes show up. Partial HELLP still needs close watching, because it can progress to the full version. [1,2]

How rare is HELLP syndrome?

Pretty rare. HELLP happens in roughly 0.5 to 0.9% of all pregnancies, so fewer than 1 in 100. It's much more common among people who already have severe preeclampsia, with around 10 to 20% of them going on to develop HELLP.

Timing-wise, about 70% of cases appear before delivery, most often between 27 and 37 weeks. The other 30% or so show up after the baby arrives. (Yep, postpartum HELLP is a thing. We'll get to it.) [2]

So who's most likely to get it? Anderson explains: "HELLP syndrome is most commonly diagnosed in women over age 25, particularly those over 35, and appears to occur more often in women who have had previous pregnancies. However, HELLP can affect women of any age, race, or pregnancy history, including those with no obvious risk factors."

## What is HELLP syndrome caused by?

Short answer: nobody knows for sure yet. 🤷‍♀️

Researchers are still piecing together exactly what causes HELLP syndrome, but most theories point back to the placenta. [1]

In both preeclampsia and HELLP, the placenta doesn't seem to connect to your blood supply quite the way it should early in pregnancy. That can set off inflammation and damage to the lining of blood vessels all over the body. Here's how that plays out:

• As blood squeezes through damaged vessels, red blood cells get broken apart (hemolysis).
• Platelets get used up as they rush to patch the damage (low platelets).
• The liver, packed with blood vessels, takes a hit (elevated liver enzymes).

Things that may raise your risk include:

• Having preeclampsia or eclampsia, now or in a past pregnancy [3]
• Having had HELLP before [1]
• A family history of preeclampsia or HELLP [3]
• Certain autoimmune conditions or clotting disorders, like antiphospholipid syndrome
• Being over 25, especially over 35 [1]
• Having been pregnant before

And just to say it loud for the people in the back: you didn't cause this. Nothing you ate or did brought it on.

What are the warning signs of HELLP?

Here's the sneaky part. The early signs of HELLP syndrome can look a LOT like regular late-pregnancy misery.

Anderson explains: "The earliest symptoms can look a lot like common pregnancy complaints. Women may initially notice heartburn, indigestion, nausea, vomiting, fatigue, headache, or general malaise, and these symptoms are often attributed to the discomforts of late pregnancy. A particularly important warning sign is pain in the upper abdomen, especially under the right ribs, which reflects liver involvement. This pain is called epigastric or right upper quadrant pain, and all women globally are taught that this is a danger sign. With that said, as that area has a lot of pressure from the growing uterus, it can be hard to recognize."

HELLP syndrome symptoms to watch for: [3]

🚨 Pain in the upper right side of your belly (under your ribs) or the middle of your upper belly

🤢 Nausea or vomiting, especially if it's new in the second half of pregnancy

🔥 Heartburn or indigestion that your usual remedies don't touch

🤕 A headache that won't quit, even after acetaminophen (Tylenol)

👀 Blurry vision, double vision, or flashing lights

🤒 Feeling flu-ish, wiped out, or "just not right"

😩 Shoulder pain, or pain when you take a deep breath

✋ Sudden swelling, especially in your face or hands

😮‍💨 Shortness of breath

🩸 Unusual bleeding or bruising

Plenty of people with HELLP say their symptoms came and went, which can make you second-guess yourself. Research suggests HELLP symptoms often get worse at night and ease up during the day. So feeling better by morning doesn't mean you're in the clear. [4]

Doctors also look for measurable signs of HELLP syndrome, including high blood pressure, protein in your pee, and blood test results showing low platelets, high liver enzymes, and red blood cell breakdown. [1]

"As a certified nurse-midwife, I've seen how easy it is for these symptoms to be dismissed because they are so nonspecific," says Anderson. "In many low- and middle-income countries, HELLP may be underrecognized not because it is necessarily less common, but because diagnosing it requires laboratory testing that may not be readily available. A persistent headache, worsening nausea, unexplained fatigue, visual changes, or upper abdominal pain should always prompt medical evaluation, particularly in the second half of pregnancy."

If any of these sound familiar, call your provider or head to labor and delivery right away. You're never "overreacting" by getting checked.

Is there a HELLP syndrome rash?

HELLP doesn't usually cause a classic rash. But low platelets can cause petechiae: tiny pinpoint red or purple dots on the skin that can look like a rash and don't fade when you press on them. You might also notice easy bruising, bleeding gums, or nosebleeds. Some people get a yellowish tinge to their skin or the whites of their eyes (jaundice), which points to liver stress. [1,5]

Intense itching without a rash in late pregnancy can be a sign of a different liver condition called intrahepatic cholestasis of pregnancy, which also needs a call to your provider. Rule of thumb: any new, unexplained spots or skin changes in pregnancy deserve a check. [6]

## What's the difference between preeclampsia and HELLP?

Preeclampsia is high blood pressure that starts after 20 weeks of pregnancy, plus signs that organs are under strain (often protein in your urine). HELLP zooms in on what's happening in your blood and liver. [7]

Think of preeclampsia as the big umbrella, with HELLP as one of its most severe forms.

Here's how Anderson describes HELLP syndrome vs preeclampsia: "HELLP syndrome is generally considered a severe variant or complication of preeclampsia, and those with preeclampsia are at increased risk. However, some experts view it as a related but distinct disorder. In this syndrome there can be widespread vascular and inflammatory damage."

Do you have to have preeclampsia to have HELLP?

Nope. And this is a big one. Around 10 to 20% of people with HELLP don't have high blood pressure or protein in their urine. [1]

"Most women with HELLP have features of preeclampsia, such as high blood pressure and protein in the urine, but not all do," Anderson explains. "In fact, a significant minority of patients develop HELLP without the classic signs clinicians usually associate with preeclampsia. That is why healthcare providers must maintain a high index of suspicion when a pregnant patient presents with concerning symptoms, even if her blood pressure is normal."

Translation: a normal blood pressure reading doesn't automatically rule out HELLP. If your symptoms feel off, ask about blood work.

How quickly does HELLP syndrome progress?

Fast. Sometimes really fast.

"HELLP syndrome can progress very rapidly, sometimes over hours to days, making early recognition critical," says Anderson. "Patients who appear relatively stable can deteriorate quickly as platelet counts fall, liver function worsens, and the risk of complications such as bleeding, stroke, liver rupture, or placental abruption increases. For this reason, lab tests are performed frequently, up to several times a day once the diagnosis is made."

So if you're diagnosed and it feels like someone's taking your blood every five minutes, that's why. Other possible complications include kidney problems, fluid in the lungs, and a serious clotting problem called DIC. These are exactly why your care team moves quickly, and why speedy treatment matters so much. [1]

## What's the treatment for HELLP syndrome?

The only real cure is delivering your baby and placenta. Everything else is about keeping you stable until then. Anderson explains: "Once HELLP is diagnosed, treatment focuses on stabilizing the mother with medications such as magnesium sulfate to prevent seizures, blood pressure control when needed, and blood products in severe cases. The only definitive treatment is delivery of the baby and placenta."

When your baby arrives depends on how far along you are:

"Delivery timing depends on gestational age and maternal and fetal condition. If HELLP develops at or beyond about 34 weeks, delivery is usually recommended promptly. Before 34 weeks, clinicians may sometimes delay delivery briefly, often for 24 to 48 hours, to administer corticosteroids that help mature the baby's lungs, but only if both mother and baby remain stable. In severe or rapidly worsening cases, immediate delivery may be necessary regardless of gestational age, which is a great concern for the baby."

What this might look like in the hospital:

• Magnesium sulfate through an IV to protect against seizures. It can also make you feel hot and flushed, heavy, and totally drained, which is normal (if deeply unfun). [8]
• Blood pressure meds to bring high readings down safely.
• Steroid shots to help your baby's lungs mature if they're arriving early. [1]
• Blood or platelet transfusions if your counts drop very low.
• Lots of monitoring for you and your baby.

A vaginal birth may be possible if you and your baby are stable. If things are urgent, a C-section might be the safer route. Heads-up: if your platelets are very low, an epidural might not be an option, so your team may talk to you about other kinds of pain relief or anesthesia. You might also be moved to a hospital with a NICU if your baby is likely to arrive early. [1,2]

Your medical team's plan is the one to follow here, no exceptions. Ask all the questions you need to, and lean on them.

Can a baby survive HELLP syndrome?

Yes. Many babies born to parents with HELLP do well, and most go on to develop normally. The biggest factor in how your baby does is how far along you are when they're born. [2]

Does HELLP syndrome hurt the baby?

So, how does HELLP syndrome affect the baby? Mostly through early birth and through the placenta not working as well as it should. Possible risks include: [1]

• Being born early (preterm birth)
• Growing more slowly in the womb
• Placental abruption, where the placenta separates from the uterus too soon
• Low platelets in the baby
• Breathing problems, especially in babies born very early

Here's the encouraging bit. Babies who weigh more than about 2 pounds (1,000 grams) at birth tend to have similar survival and health outcomes to other babies the same size who weren't affected by HELLP. In one follow-up study, about 90% of children born after HELLP had normal development or only minor issues. [2,3]

The risks are higher for babies born before 32 weeks, and sadly, some pregnancies affected by HELLP do end in loss. If that's part of your story, please know your grief is valid, and support is out there for you. [2]

## How long does it take to recover from HELLP syndrome?

Physically, most people's blood work starts improving within a few days of delivery and gets back to normal over the following week or so. You'll likely stay in the hospital for several days, sometimes longer if there were complications. [2]

Your body may need weeks to months to fully bounce back, especially if you:

• Had a C-section (recovery usually takes around 6 to 8 weeks)
• Lost a lot of blood and are dealing with anemia-level exhaustion
• Need to stay on blood pressure meds for a while

You'll want blood pressure checks soon after you get home, often within the first week or two. Don't skip these. [9]

Then there's the emotional side, which can take longer. Many people describe HELLP as terrifying: the speed, the emergency birth, maybe time apart from their baby in the NICU. Feeling anxious, numb, or stuck replaying it all is really common. Birth trauma, postpartum depression, and PTSD can follow a HELLP birth, and none of them make you weak. Talking to a therapist can help. So can connecting with people who've lived it: on Peanut, you can find other moms who've been through HELLP and who truly get it.

Does HELLP go away after delivery?

Usually, yes. Delivering your baby and placenta is what turns things around. But it doesn't flip like a light switch.

Your platelets often keep dropping for a day or two after birth, then start climbing again around day three. That's why you'll be closely monitored for at least 48 hours after delivery. [2]

And here's something a lot of people don't know: HELLP syndrome after delivery can happen even if your pregnancy seemed totally fine. About 30% of cases show up postpartum, mostly within the first 48 hours, though it can appear up to 7 days after birth. Postpartum HELLP carries a higher risk of kidney and lung complications, so it needs fast care. [2]

If you notice any of the warning signs above in the days after birth, call your provider or go to the ER, and make sure to mention you just had a baby. HELLP syndrome after birth is easy to miss if staff don't know you're postpartum.

Can HELLP syndrome cause problems later in life?

Most people recover fully. But having HELLP or preeclampsia is linked to a higher long-term risk of a few conditions, including: [10,11]

• High blood pressure
• Heart disease and stroke
• Kidney problems

Think of this as a heads-up, not a life sentence. Let every future doctor know about your HELLP history, keep up with regular blood pressure checks, and talk to your provider about heart-healthy habits that work for your life.

Can you have a baby after HELLP syndrome?

Absolutely. Lots of people go on to have healthy pregnancies after HELLP.

There is a higher chance of things coming back, though. Studies show the risk of HELLP happening again ranges from about 2 to 19%. The risk of some form of preeclampsia in a later pregnancy is higher, around 16 to 52%, especially if your HELLP started early. [3]

If you're thinking about trying again, consider:

• Booking a pre-pregnancy visit with your OB-GYN or a maternal-fetal medicine specialist

• Asking whether you should be tested for clotting or autoimmune conditions [2]

• Making a plan for extra monitoring during pregnancy

• Asking about low-dose aspirin

  

Is there a way to prevent HELLP syndrome?

There's no guaranteed way to prevent HELLP. But there are ways to lower your risk and catch it early. [3]

Early detection is a huge part of the picture. Anderson explains: "For many years I was in clinical practice and saw women burdened by HELLP syndrome. It is always scary for the provider because her condition can be hard to recognize and can deteriorate quickly. For this reason, in high-resource countries, checking the platelets is routine for pregnant women at the end of pregnancy and at hospital admission, including when in labor or with any sign of preeclampsia."

Things that can help:

• Low-dose aspirin, if your provider recommends it: For people at high risk of preeclampsia, ACOG recommends a daily low-dose (81 mg) aspirin, usually started between 12 and 28 weeks (ideally before 16 weeks). Lowering your preeclampsia risk may also lower your HELLP risk. Please don't start aspirin on your own. This is strictly a with-your-provider decision. [3,7]
• Going to all your prenatal appointments: Those blood pressure and urine checks matter.
• Sharing your full history: Past preeclampsia, HELLP, or a family history of either? Tell your provider early.
• Checking your blood pressure at home if your provider suggests it.
• Trusting your gut: "Something just doesn't feel right" is a valid reason to call. Always.

Know the signs, trust your gut

HELLP syndrome is rare, but it's serious and it can move fast. The best thing you can do is know the signs, especially upper belly pain, a headache that won't budge, vision changes, and new nausea in the second half of pregnancy or the days after birth.

As Anderson sums it up: "HELLP syndrome is a rare but life-threatening obstetric emergency. Symptoms that seem like routine pregnancy discomforts, especially persistent upper abdominal pain, severe headache, nausea, or feeling unusually unwell, should never be ignored. Early recognition and prompt delivery can be lifesaving for both mother and baby."

Whether you're worried about HELLP, healing from it, or planning your next pregnancy after it, you don't have to figure it out alone. Come find your people on Peanut, where women who've been there are ready to listen. 🫶