Pain under the right ribs is common in pregnancy, and most of the time it comes from a crowded belly or the gallbladder rather than something dangerous. But the same spot sits over the liver, so this pain can also be an early sign of a pregnancy-specific blood pressure and liver problem that needs urgent care. The question that matters most is less where it hurts than what comes with it and when in pregnancy it starts.
Warning Signs That Need Same-Day Care
Right upper belly pain should be checked the same day when it comes with any of these:
- A new or severe headache, blurred vision, or seeing spots, especially after 20 weeks.
- Sudden swelling of the face or hands.
- Nausea, vomiting, and a general sick, unwell feeling late in pregnancy.1PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy.
- Fever or chills.2PubMed Central. Acute cholecystitis during pregnancy: a systematic review and meta-analysis
- Yellowing of the skin or eyes, or dark urine.
- Shortness of breath, or chest pain when you breathe in.3PubMed Central. Pulmonary Embolism Presenting as Abdominal Pain: An Atypical Presentation of a Common Diagnosis
- Severe pain that doesn’t ease, or pain in the days after giving birth.4PubMed. Acute pancreatitis and cholecystitis associated with postpartum HELLP syndrome: a case and review
Preeclampsia and its severe form can first show up after delivery, sometimes as pain on the first day after birth.5PubMed. Acute pancreatitis and cholecystitis associated with postpartum HELLP syndrome: a case and review Pain that feels like heartburn under the ribs late in pregnancy can also be liver pain rather than indigestion.6PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy. So call your maternity unit instead of reaching for antacids and waiting.
When you call, say how many weeks pregnant you are, or how many days it has been since the birth. Describe when the pain started, whether it comes and goes, and what makes it worse. Mention any headache, vision change, swelling, vomiting, or fever, even if it seems minor. If you have a home blood pressure cuff, give a recent reading. Triage staff would much rather see you for nothing than miss preeclampsia.
A normal reading at home doesn’t settle the question. Preeclampsia can be present with pain before blood pressure is clearly high, and readings swing during the day. Home cuffs can also read inaccurately, so staff will want to repeat the measurement with their own equipment.
Everyday Pregnancy Changes That Cause Right Rib Pain
Nerve pain under the ribs in pregnancy most often affects the spaces below the lowest three “floating” ribs.7PubMed Central. Ultrasound‐guided intercostal block for the management of intercostal neuralgia in pregnant women: Case series and review of the literature These ribs aren’t attached to the breastbone, so they move more and their nerves are irritated more easily.8PubMed Central. Ultrasound‐guided intercostal block for the management of intercostal neuralgia in pregnant women: Case series and review of the literature Pregnancy hormones loosen joints, the diaphragm is pushed upward, and organs shift as the uterus grows.9PubMed Central. Ultrasound‐guided intercostal block for the management of intercostal neuralgia in pregnant women: Case series and review of the literature The pain is often sharp or burning along the rib line and changes when you sit differently or twist.
The right kidney is another source. Over 90% of pregnant women develop swelling of the kidney’s drainage system, usually without symptoms.10PubMed Central. The Management of Symptomatic Hydronephrosis in Pregnancy It shows up in the second trimester and peaks between 24 and 28 weeks.11PubMed Central. The Management of Symptomatic Hydronephrosis in Pregnancy It is more noticeable on the right because the uterus presses on the right ureter where it crosses the pelvic blood vessels, while the left is shielded by the bowel.12PubMed Central. The Management of Symptomatic Hydronephrosis in Pregnancy Constipation, which is common in pregnancy, adds to the pressure on that side.13PubMed Central. The Management of Symptomatic Hydronephrosis in Pregnancy So an ultrasound showing a “swollen” right kidney is often a normal pregnancy finding.
Heartburn adds to the mix. Reflux is common in pregnancy because the valve at the top of the stomach relaxes, digestion slows, and the uterus presses upward.14PubMed Central. Management of acute abdomen in pregnancy: current perspectives Burning under the breastbone or in the upper belly after meals is usually this.
The three feel different. Rib pain is usually tender to the touch and shifts with sitting, bending, or twisting. Kidney-side pain sits more in the back or flank and may ease when you lie on your left side. Reflux burns and links to meals or lying flat. None of them should come with fever, vomiting, headache, or vision changes.
For relief, change position often and try lying on your left side. Smaller, earlier meals and propping up your head ease reflux. Water and fibre help constipation, which also takes pressure off the right kidney. Ask your midwife before taking any painkiller or antacid.
Pain that becomes constant, severe, or no longer shifts with position deserves assessment instead of more home remedies. Even if you were told earlier that your rib or kidney-side pain was normal, new symptoms alongside it mean that reassurance no longer applies.
Gallstones and Gallbladder Attacks
Higher estrogen in pregnancy makes bile richer in cholesterol and slows the gallbladder’s emptying.15PubMed. Cholesterol cholelithiasis in pregnant women: pathogenesis, prevention and treatment Bile sits longer, and the cholesterol crystallises into stones. Up to 3.5% of pregnant women have gallstones without symptoms.16PubMed Central. Management of acute abdomen in pregnancy: current perspectives Gallstones are behind about 90% of gallbladder infections during pregnancy.17PubMed Central. Management of acute abdomen in pregnancy: current perspectives Stones that formed during pregnancy sometimes shrink or disappear after birth as hormone levels fall, though others stay and cause attacks later.
A gallbladder attack brings cramping pain in the right upper belly or just below the breastbone, with bloating and nausea, usually after eating.18PubMed Central. Management of acute abdomen in pregnancy: current perspectives The gallbladder doesn’t move much in pregnancy, so symptoms look the same as in anyone else.19PubMed Central. Management of acute abdomen in pregnancy: current perspectives The gallbladder squeezes against a stone blocking its outlet. The pain commonly lasts from about half an hour to a few hours and then settles by itself once the stone shifts. It can spread toward the right shoulder blade or back, which makes it confusing to place.
When the gallbladder becomes inflamed, the most common symptoms are right upper pain, vomiting, nausea, and fever in about 1 in 6.20PubMed Central. Acute cholecystitis during pregnancy: a systematic review and meta-analysis Fever, or pain lasting hours instead of easing, suggests an inflamed or infected gallbladder rather than a simple attack.
Gallbladder pain is typically a deep, steady or cramping ache that doesn’t change when you move or press on your ribs, which separates it from nerve pain along the rib line. Reflux burns higher up and usually responds to sitting upright, whereas a gallbladder attack doesn’t ease with position or small sips of water. Because the patterns overlap, a scan rather than guessing is how the cause is confirmed.
Surgeons and obstetricians consider keyhole gallbladder removal safe in pregnancy, and it lowers the chance of attacks coming back.21PubMed Central. Between guidelines and reality; the complex decision-making of acute cholecystitis in pregnancy The second trimester is the preferred time for a planned operation, but it can be done in any trimester and up to about 35 weeks.22PubMed Central. Between guidelines and reality; the complex decision-making of acute cholecystitis in pregnancy Across many cases, outcomes for the baby after keyhole surgery were similar to treating without surgery.23PubMed Central. Acute cholecystitis during pregnancy: a systematic review and meta-analysis Surgery is usually offered for repeated attacks, gallbladder infection, or pancreatitis caused by stones.24PubMed Central. Laparoscopic Cholecystectomy in Pregnancy: A Seven-Year Retrospective Study From an Australian Tertiary Center
In the meantime, attacks often follow rich or fatty meals, so smaller, lower-fat meals may help. Note how long each attack lasts and what you ate. Repeated attacks are a reason to ask about surgery rather than just enduring them, and delaying isn’t automatically safer for the baby, since attacks can return worse.
Preeclampsia and HELLP Syndrome
Preeclampsia is high blood pressure in pregnancy that harms organs, usually after 20 weeks, and often shows as protein in the urine. HELLP syndrome is a severe form in which red blood cells break down, liver enzymes rise, and the blood’s clotting cells drop.25PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy. HELLP occurs in about 1 in 150 pregnancies and in 10% to 20% of severe preeclampsia.26PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy. Typical symptoms are right upper or upper middle belly pain, nausea, vomiting, and feeling unwell.27PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy.
Preeclampsia starts with problems in the placenta and the body’s small blood vessels, so organs can be affected even when the mother feels well at first. In the liver, tiny vessels become damaged and narrowed, which can injure liver cells and make the organ swell. The swelling stretches the capsule around the liver, and that stretch is what you feel as pain under the right ribs.
Liver involvement ranges from mild blood test changes to bleeding under the liver’s surface.28PubMed Central. Preeclampsia-induced Liver Dysfunction, HELLP syndrome, and acute fatty liver of pregnancy. This bleeding happens in about 1% to 2% of women with preeclampsia and HELLP.29PubMed Central. Grade III subcapsular liver hematoma secondary to HELLP syndrome: A case report of conservative management If it ruptures, it is life-threatening, which is why early diagnosis matters.30PubMed Central. Grade III subcapsular liver hematoma secondary to HELLP syndrome: A case report of conservative management
It can look like heartburn or a stomach bug. Pain under the breastbone and nausea feel like indigestion, and feeling unwell can be mistaken for a virus. Blood pressure readings, urine tests, and blood tests are what separate it from those causes, since blood pressure isn’t always clearly high at first.
If preeclampsia is suspected, staff check your blood pressure, test your urine for protein, and draw blood. The blood tests look at liver enzymes and platelet count. The baby’s heart rate and growth are checked too. The main treatment is delivering the baby, timed to how many weeks pregnant you are and how sick you are. Medicines may be given to lower blood pressure and protect against seizures.
Less Common Causes Doctors Consider
As the uterus grows, it pushes the appendix upward.31Bangkok Hospital. Appendicitis in pregnancy Later in pregnancy, appendicitis can therefore hurt in the right upper belly instead of the lower right.32Bangkok Hospital. Appendicitis in pregnancy That makes it easy to miss: the pain can be mistaken for a gallbladder problem or ordinary pregnancy aches, and the nausea and vomiting common in pregnancy can hide early signs. A ruptured appendix raises risks for mother and baby, so delay matters more than usual. Diagnosis typically relies on ultrasound, then MRI if the result is unclear.
Several liver conditions can also cause this pain. Acute fatty liver of pregnancy can begin with tiredness, weakness, nausea, vomiting, and belly pain before any yellowing appears.33Medical journal of Uzbekistan. CLINICO-MORPHOLOGICAL CHARACTERISTICS OF ACUTE FATTY LIVER OF PREGNANCY It is a rare condition of late pregnancy in which fat builds up inside liver cells and the liver begins to fail. Early symptoms are vague, so it can resemble a stomach bug before blood tests show liver trouble. Confusion, marked thirst, or low blood sugar can appear as it progresses. It is treated by delivering the baby and supportive hospital care, usually with good recovery.
In rare cases a virus such as herpes can inflame the liver, with persistent fever.34PubMed Central. Herpes encephalitis and hepatitis in pregnancy: A case report and literature review In women with clotting disorders and severe preeclampsia, a clot in the liver’s veins after birth has caused pain and fluid in the belly.35PubMed. Budd-Chiari syndrome complicating severe preeclampsia in a parturient with primary antiphospholipid syndrome
A blood clot in the lung can be felt as upper belly pain when it irritates the lining under the lungs.36PubMed Central. Pulmonary Embolism Presenting as Abdominal Pain: An Atypical Presentation of a Common Diagnosis Pregnancy raises clot risk, so breathlessness with this pain needs urgent checks. After birth, a womb infection can spread to the liver’s surface, causing right upper pain that worsens with movement and breathing.37PubMed Central. Fitz-Hugh-Curtis Syndrome Secondary to Postpartum Endometritis: Case Report and Literature Review
Tests Your Doctor May Order
Ultrasound is the first test for right upper pain in pregnancy, and it uses no radiation.38PubMed Central. ACR Appropriateness Criteria Right Upper Quadrant Pain It finds about 85% of gallbladder infections in pregnancy, close to a CT scan.39Journal of Urgent Care Medicine. A Pregnant Woman with Upper Right Quadrant Pain It is very good at showing gallstones and thickened gallbladder walls, which is why it comes first. Later in pregnancy it can be limited because the uterus pushes organs out of their usual positions, and a normal scan doesn’t exclude every cause, so doctors weigh it against your symptoms and blood tests.
If ultrasound is unclear, MRI can check the whole bile system and other causes without radiation.40PubMed Central. ACR Appropriateness Criteria Right Upper Quadrant Pain MRI sees past the large uterus better than ultrasound, and dye is avoided to protect the baby.41PubMed. Acute abdominal and pelvic pain in pregnancy: ESUR recommendations
Blood tests matter just as much. Abnormal liver tests show up in 3% to 5% of pregnancies.42PubMed. The interpretation of liver function tests in pregnancy The liver enzymes (ALT and AST) on your report normally stay within the usual range in pregnancy.43PubMed. Liver function tests in normal pregnancy: a prospective study of 103 pregnant women and 103 matched controls Alkaline phosphatase rises normally in the third trimester, and albumin and bilirubin run lower.44PubMed. Liver function tests in normal pregnancy: a prospective study of 103 pregnant women and 103 matched controls So a high alkaline phosphatase alone is usually expected, while raised ALT or AST needs explanation.
When you get results, ask whether any flagged number is normal for your trimester. Ask about your platelet count alongside the liver enzymes, and what the next test would be if ultrasound is unclear.