Preeclampsia pain most commonly strikes in two places: the upper right side of the abdomen, just below the ribs, and the head. These are the two hallmark pain locations, though the condition can also cause referred pain in the shoulder and back. Because many of these sensations overlap with normal pregnancy discomfort, knowing exactly what preeclampsia pain feels like and where it shows up can help you recognize it early.
Upper Right Abdominal Pain
The most characteristic pain of preeclampsia occurs in the upper right quadrant of the abdomen, directly below the ribs on the right side. This is where the liver sits. When preeclampsia affects the liver, it causes swelling that stretches the organ’s outer capsule, producing deep, persistent pain. Between 50% and 90% of women with liver involvement from preeclampsia report this pain, depending on how far the condition has progressed.
This pain has some distinctive qualities. It typically begins at night, centers in the area just below the breastbone or under the right ribs, and stays constant and unrelenting for one to six hours. It doesn’t come and go like gas or contractions. The liver itself becomes tender to touch, meaning pressing on the right side of your upper belly feels painful. In some cases, the pain radiates to the back or stays confined to the right side of the rib cage.
One important detail: this abdominal pain can appear up to seven days before preeclampsia is formally diagnosed. It may even be the only abnormal sign at first, which means it sometimes gets dismissed as heartburn or indigestion.
How It Differs From Heartburn
Normal pregnancy heartburn is a burning sensation that rises from the stomach into the chest and throat, often triggered by eating or lying down. Preeclampsia pain is deeper, more severe, and doesn’t respond to antacids. It tends to be a constant pressure or squeezing rather than a burn, and it sits lower, right under the ribs rather than behind the breastbone. If you’re past 20 weeks pregnant and experience upper abdominal pain that feels different from your usual indigestion, that distinction matters.
Headache Location and Quality
Headache is the most common neurological symptom of preeclampsia, affecting roughly two-thirds of patients whose condition involves the brain. The typical preeclampsia headache is bilateral, meaning it affects both sides of the head, and often concentrates toward the back of the skull. It tends to build gradually rather than hitting all at once, with a dull, pulsating quality that worsens with physical activity.
The key red flag is that this headache does not improve with rest, hydration, or standard pain relievers like acetaminophen. A normal pregnancy headache usually has an identifiable trigger (dehydration, fatigue, tension) and responds to basic treatment. A preeclampsia headache is persistent, progressive, and stubborn. It may last for hours or days and keep intensifying. When the condition is severe, the headache becomes what clinicians call “intractable,” meaning nothing makes it go away.
Distinguishing a preeclampsia headache from a migraine can be tricky, since the individual features overlap significantly. The most reliable clue isn’t the headache itself but what accompanies it: sudden swelling in the face or hands, visual changes, or elevated blood pressure readings.
Shoulder and Back Pain
Some women with preeclampsia experience pain in the right shoulder that seems to come from nowhere. This is referred pain, meaning the source of the problem is actually the liver, but the nerves involved share pathways with the shoulder, so your brain interprets the signal as shoulder pain. It typically affects the right side and may feel like a deep ache rather than a muscular soreness.
Back pain from preeclampsia follows a similar pattern. When upper abdominal pain radiates to the back, it usually stays in the upper or mid-back region on the right side. This is different from the lower back pain that’s common in later pregnancy due to postural changes and weight distribution.
Visual Disturbances That Accompany Pain
Preeclampsia pain rarely shows up completely alone. Visual symptoms frequently develop alongside the headache or abdominal pain and can include blurred vision, seeing spots or flashing lights, temporary blind spots in your visual field, double vision, or distortions where straight lines appear wavy. These changes reflect how preeclampsia affects blood vessels in the brain and eyes. Any new visual disturbance after 20 weeks of pregnancy, especially combined with a headache that won’t quit, warrants immediate medical attention.
When Pain Typically Appears
Preeclampsia develops after 20 weeks of pregnancy in women whose blood pressure was previously normal. The pain symptoms can emerge at any point from that 20-week mark through the postpartum period. Because headaches, nausea, and general aches are so common in pregnancy, it’s genuinely difficult to know when a new symptom is routine and when it signals something serious, particularly during a first pregnancy.
The condition also exists on a spectrum. Mild preeclampsia may involve only elevated blood pressure and protein in the urine, with no pain at all. Severe preeclampsia is when pain symptoms typically appear, along with blood pressure readings of 160/110 or higher, abnormal liver or kidney function, and low platelet counts. When preeclampsia progresses to HELLP syndrome, a dangerous complication involving the breakdown of red blood cells and liver damage, abdominal pain intensifies and may be accompanied by nausea, vomiting, easy bruising, and extreme fatigue.
Pain That Needs Immediate Evaluation
Certain pain patterns in the second half of pregnancy call for urgent medical evaluation rather than a wait-and-see approach. These include persistent pain under the ribs on the right side that doesn’t ease with repositioning or antacids, a severe headache that doesn’t respond to normal pain relief, sudden shoulder pain on the right side without an obvious physical cause, and any combination of these symptoms alongside swelling in the face or hands, visual changes, or sudden weight gain. Severe upper right abdominal pain can signal impending liver complications that require emergency care.
The NHS advises contacting your midwife or medical provider immediately if you notice any symptoms of preeclampsia, rather than waiting for your next scheduled appointment. Early recognition of these pain patterns is one of the most important things you can do, because preeclampsia can escalate quickly from manageable to dangerous, and delivery timing decisions depend on how the condition is progressing.