Pain in the right upper abdomen can come from the gallbladder, liver, stomach, kidney, pancreas, lungs, ribs, muscles, or even nerves in the skin. The pattern of the pain and the symptoms that come with it often provide better clues than the location alone.

Seek urgent care for: severe or rapidly worsening pain, pain with fever or repeated vomiting, yellow skin or eyes, fainting, breathing difficulty, chest pressure, black or bloody stool, a rigid abdomen, or right upper abdominal pain during pregnancy with severe headache, vision changes, or high blood pressure.

The right upper quadrant, usually shortened to RUQ, is the area beneath the right side of the rib cage and above the level of the belly button. When right upper quadrant pain develops, it can be difficult to know which organ is responsible because this area contains the liver and gallbladder, while the upper intestine, stomach, pancreas, right kidney, lower right lung, ribs, abdominal wall, and skin nerves can also cause pain in the same region.

Gallbladder problems are among the classic causes because the gallbladder sits directly under the liver. Gallstones can cause a sudden, steady attack of pain after a meal, while an inflamed gallbladder can produce more persistent pain, tenderness, nausea, fever, or pain that travels toward the back or right shoulder blade.

The location is only the starting point. Pain that worsens with a deep breath suggests a different group of causes than pain that begins after a fatty meal. Burning pain with black stool is different from sharp flank pain with blood in the urine. The sections below use these patterns to show what right upper quadrant pain can mean and when it should be evaluated quickly.

Key Takeaways

• Gallstones and gallbladder inflammation are common causes of right upper quadrant pain, especially when pain begins after eating and may spread to the back or right shoulder blade.
• Fever, jaundice, dark urine, pale or clay-colored stool, or pain lasting for hours can point to a blocked or infected biliary system and should not be managed only at home.
• Liver conditions can cause right upper abdominal discomfort, but many liver diseases cause few or no symptoms until they are more advanced.
• Pain that gets worse when you breathe or cough may come from the lung lining, pneumonia, a pulmonary problem, or the ribs rather than from the gallbladder.
• Pain toward the side or back with urinary symptoms or blood in the urine raises the possibility of a kidney stone or kidney infection.
• A clinician may use blood tests and imaging to distinguish the causes. Ultrasound is commonly the first imaging test when gallbladder or biliary disease is suspected.
• Right upper quadrant pain in pregnancy can rarely be a sign of severe preeclampsia or HELLP syndrome, particularly when combined with headache, vision changes, nausea, swelling, or high blood pressure.
• Persistent or recurrent RUQ pain deserves evaluation even if it is mild, because the same location can represent several very different conditions.

Where Exactly Is the Right Upper Quadrant?

Imagine dividing the abdomen into four sections using one vertical line through the center of the body and one horizontal line through the belly button. The area above the horizontal line and to your right is the right upper quadrant.

The lower edge of the right rib cage overlaps this region, so people often describe RUQ pain as pain “under the right ribs,” “below the right breast,” or “high on the right side of my stomach.” Pain can also be referred, meaning it is felt in the RUQ even though the source is nearby or in another structure.

The main organs and structures that can contribute include the gallbladder, liver, bile ducts, part of the stomach and duodenum, part of the pancreas, right kidney, right side of the colon, diaphragm, lower right lung, ribs, intercostal muscles, abdominal wall, and sensory nerves in the skin.

What Does the Pattern of RUQ Pain Suggest?

Pain pattern	Possible causes to consider	Other clues
Steady pain after a heavy or fatty meal	Gallstones or gallbladder inflammation	Nausea, pain to back or right shoulder, tenderness
Pain lasting hours with fever	Acute cholecystitis, cholangitis, pancreatitis, infection	Vomiting, chills, jaundice, feeling ill
Yellow skin or eyes with RUQ pain	Bile duct obstruction, hepatitis, other liver or biliary disease	Dark urine, pale stool, itching
Burning or gnawing upper abdominal pain	Gastritis or peptic ulcer	Nausea, meal-related pain, black stool if bleeding
Upper abdominal pain radiating to the back	Pancreatitis or gallbladder disease	Nausea, vomiting, tenderness
Sharp pain in the side or back in waves	Kidney stone	Blood in urine, urinary urgency, groin radiation
Steady flank pain with fever	Kidney infection	Painful urination, chills, nausea
Pain worse with deep breathing or cough	Pneumonia, pleurisy, pulmonary causes, rib or muscle pain	Cough, fever, shortness of breath, chest symptoms
Pain reproduced by pressing or twisting	Muscle strain, rib injury, abdominal wall pain	Recent exercise, coughing, lifting, trauma
Burning or tingling skin pain followed by rash	Shingles	One-sided band of blisters or hypersensitive skin

1. Could Gallstones Be Causing the Pain?

Gallstones are one of the first conditions clinicians consider when pain is centered under the right ribs. Stones form inside the gallbladder and may cause no symptoms until one temporarily blocks the flow of bile.

A classic gallbladder attack, also called biliary colic, tends to cause steady pain in the upper right or upper middle abdomen. The pain may become intense and can last from about 30 minutes to several hours. It often appears after a heavy meal because the gallbladder contracts to release bile for fat digestion.

The pain may travel into the back or below the right shoulder blade. Nausea and vomiting can occur. Unlike intestinal cramps, the pain is often steady rather than repeatedly coming and going every few seconds.

The National Institute of Diabetes and Digestive and Kidney Diseases describes upper-right abdominal pain lasting several hours as a typical gallbladder-attack pattern. See the NIDDK gallstones symptoms and causes guide.

When Does Gallstone Pain Become More Concerning?

Biliary colic generally improves when the stone moves and bile can flow again. If a blockage persists, inflammation or infection can develop in the gallbladder, bile ducts, liver, or pancreas.

Pain that lasts for hours, especially with fever, chills, repeated vomiting, jaundice, tea-colored urine, or pale stool, needs prompt medical assessment. These symptoms can indicate acute cholecystitis, obstruction of the common bile duct, or cholangitis.

2. What Does Acute Cholecystitis Feel Like?

Acute cholecystitis is sudden inflammation of the gallbladder, most often caused by a gallstone blocking the cystic duct. The pain is usually in the upper right or upper middle abdomen and tends to remain steady rather than disappearing quickly.

The area can become very tender. Pain may spread to the back or below the right shoulder blade, and symptoms commonly include nausea, vomiting, fever, or jaundice. Eating, especially a fatty meal, may precede the attack.

Cholecystitis can lead to infection, tissue damage, perforation, pancreatitis, or bile duct complications. Severe or persistent RUQ pain with systemic symptoms should be evaluated rather than treated as simple indigestion.

3. Can a Blocked Bile Duct Cause Right Upper Quadrant Pain?

Yes. A gallstone can leave the gallbladder and become lodged in the common bile duct. This is called choledocholithiasis. Because the common bile duct drains bile from the liver and gallbladder, obstruction can cause both pain and abnormal liver-related symptoms.

Clues include RUQ or upper-middle abdominal pain, jaundice, dark urine, pale or clay-colored stool, itching, nausea, or vomiting. Fever and chills raise concern for cholangitis, an infection of the biliary system that can become life-threatening.

A common bile duct stone can also obstruct drainage from the pancreas and trigger gallstone pancreatitis. This is one reason worsening pain with jaundice or fever requires faster evaluation than a short isolated episode of post-meal discomfort.

4. Can Liver Problems Cause Pain Under the Right Ribs?

The liver occupies much of the right upper abdomen, so inflammation, enlargement, congestion, masses, or injury can create pressure or discomfort under the right ribs. The sensation may be dull, aching, or more like fullness than a sharp attack.

Possible liver-related causes include viral or other hepatitis, advanced fatty liver disease, alcohol-related liver disease, cirrhosis with liver enlargement, liver abscess, tumors, and congestion from heart-related problems. Many liver conditions, however, do not cause noticeable pain in their early stages.

Symptoms that make a liver or biliary cause more likely include jaundice, dark urine, pale stool, itching, unusual fatigue, loss of appetite, swelling in the legs or abdomen, easy bruising, or abnormal liver blood tests. Those symptoms should be discussed with a clinician rather than assuming the pain is muscular.

5. Can Gastritis or a Peptic Ulcer Be Felt on the Right Side?

Yes. The stomach and duodenum sit mainly in the upper central abdomen, but pain is not always felt exactly over the affected tissue. Duodenal ulcer pain in particular can be perceived toward the right upper abdomen.

Ulcer or gastritis pain is often described as burning, aching, or gnawing. It may occur when the stomach is empty, around meals, or at night. Nausea, bloating, early fullness, or heartburn can occur at the same time.

Helicobacter pylori infection and regular use of nonsteroidal anti-inflammatory drugs, including ibuprofen and naproxen, are major causes of peptic ulcer disease. Black tarry stool, vomiting blood, faintness, or sudden severe abdominal pain can signal bleeding or perforation and needs emergency care.

6. Could It Be Pancreatitis?

The pancreas lies behind the stomach and is more central than the gallbladder, but pancreatitis can cause upper abdominal pain that is felt across the upper abdomen and radiates into the back. Gallstones are an important cause of acute pancreatitis in the United States.

Acute pancreatitis can begin suddenly or build gradually. Pain may be severe and persistent, and nausea, vomiting, fever, rapid heartbeat, and a swollen or tender abdomen may occur. People with acute pancreatitis often feel significantly ill.

Because severe pancreatitis can lead to serious complications, upper abdominal pain that is severe or worsening with repeated vomiting, fever, fast heartbeat, jaundice, or shortness of breath needs prompt evaluation.

For current federal information on the symptom pattern and warning signs, see the NIDDK pancreatitis symptoms and causes guide.

7. Can Kidney Stones Cause Pain This High?

They can, although kidney-stone pain is more often felt in the flank, side, or back than directly in the front of the RUQ. The right kidney sits high in the back of the abdomen, partly protected by the lower ribs, so pain can sometimes be interpreted as upper abdominal discomfort.

Kidney-stone pain is often sharp and severe and may come in waves as the stone moves. The pain can travel downward toward the lower abdomen or groin. Blood in the urine, urinary urgency, painful urination, nausea, or vomiting support a urinary source.

Fever or chills with suspected kidney-stone pain is more concerning because a blocked urinary tract with infection can become dangerous. A kidney infection can also cause steady side or back pain with fever, chills, nausea, and painful or frequent urination.

8. Why Can Pneumonia or Pleurisy Feel Like Abdominal Pain?

The bottom of the right lung and the diaphragm sit just above the RUQ. Inflammation near the lower lung can irritate the diaphragm and produce pain that feels as though it is coming from under the ribs rather than from the chest.

Pain from pneumonia or pleurisy is often pleuritic, meaning it becomes sharper when you inhale deeply, cough, or sneeze. Cough, fever, chills, shortness of breath, fatigue, or rapid breathing make a lung cause more likely.

Sudden shortness of breath with sharp chest or upper abdominal pain can also occur with more serious conditions such as a pulmonary embolism or collapsed lung. That combination needs emergency assessment.

9. Could the Pain Be From a Rib or Muscle?

Not every pain under the right ribs is internal. The intercostal muscles between the ribs, the abdominal wall, rib joints, and cartilage can all hurt after lifting, twisting, coughing, a new workout, a fall, or direct impact.

Musculoskeletal pain is more likely when you can reproduce it by pressing a specific spot, twisting the torso, reaching, coughing, or taking a deep breath. It may feel sore or sharp and can improve with rest from the aggravating movement.

However, tenderness to touch does not completely rule out an internal problem. Gallbladder inflammation and other abdominal conditions can also create localized tenderness, so persistent pain plus fever, vomiting, jaundice, or systemic symptoms still needs evaluation.

10. Can Shingles Cause RUQ Pain Before a Rash Appears?

Yes. Shingles can begin with burning, tingling, itching, or unusually sensitive skin several days before the rash becomes visible. When the affected nerve runs around the right side of the torso, the pain can be mistaken for gallbladder, rib, or abdominal pain.

Once the rash appears, it usually forms a one-sided band of grouped blisters and typically does not cross the center of the body. Pain can continue after the rash heals in some people, a complication called postherpetic neuralgia.

If unexplained one-sided RUQ pain is followed by a blistering rash, contact a healthcare professional promptly. Antiviral treatment is most useful when started early.

What Does Pain After Eating Suggest?

Food-related timing is one of the most useful clues. Gallbladder attacks often appear after heavy meals because fat stimulates gallbladder contraction. The attack may begin within hours of eating and remain steady.

Ulcer, gastritis, reflux, functional dyspepsia, and pancreatitis can also interact with meals. A symptom diary can help by recording the meal, time to pain onset, pain duration, exact location, nausea, bowel changes, and whether pain travels to the back or shoulder.

Do not use a home “fatty-food challenge” to provoke severe pain on purpose. If meals repeatedly trigger intense RUQ pain, get evaluated instead.

What Does Pain That Gets Worse With Breathing Suggest?

Pain that becomes sharper with deep breathing is called pleuritic pain when it comes from the lining around the lungs, but ribs and muscles can also hurt with breathing because the chest wall expands with every breath.

Pneumonia, pleurisy, pulmonary embolism, rib injury, intercostal strain, and sometimes gallbladder inflammation can all be felt more strongly during a deep breath. The accompanying symptoms help separate them.

Shortness of breath, low oxygen, coughing blood, faintness, rapid heartbeat, or sudden severe chest or RUQ pain should be treated as urgent rather than assumed to be a pulled muscle.

What Does Pain That Travels to the Right Shoulder or Back Suggest?

Gallbladder pain is well known for referring to the right shoulder blade or back. The brain can interpret irritation near the diaphragm as pain in a distant area because sensory pathways converge.

Pancreatitis can also radiate to the back, while kidney pain is usually more directly felt in the flank or back. A clinician will use the full pattern rather than the radiation alone to make a diagnosis.

When Is Right Upper Quadrant Pain During Pregnancy an Emergency?

Pregnancy adds several possible causes of RUQ pain. Gallstones are more common during pregnancy, and ordinary muscle or rib discomfort can occur as the uterus enlarges. But persistent severe upper-right or epigastric pain after 20 weeks of pregnancy can also be a severe feature of preeclampsia or HELLP syndrome.

Seek prompt obstetric or emergency assessment when RUQ pain occurs with severe headache, vision changes, high blood pressure, shortness of breath, nausea or vomiting that feels unusual for you, sudden swelling, or a general sense that something is wrong.

These pregnancy complications can progress quickly and cannot be ruled out by assuming the pain is heartburn or gallbladder discomfort.

Can Appendicitis Ever Cause Right Upper Abdominal Pain?

Typical appendicitis pain starts near the belly button and later moves to the right lower abdomen. However, anatomy varies. A high-positioned appendix, pregnancy, or unusual presentation can produce pain that is higher than expected.

Worsening abdominal pain with loss of appetite, nausea, vomiting, fever, or marked tenderness deserves prompt medical evaluation even when the location is not textbook-perfect.

How Do Doctors Diagnose Right Upper Quadrant Pain?

There is no single test for RUQ pain because the symptom has many possible sources. The evaluation usually starts with the history and physical exam. Your clinician may ask whether the pain began suddenly, whether meals trigger it, whether it radiates, whether breathing or movement changes it, and whether you have fever, jaundice, vomiting, urinary symptoms, bowel changes, chest symptoms, or pregnancy.

Blood testing may include a complete blood count, liver enzymes, bilirubin, pancreatic enzymes such as lipase, kidney function tests, electrolytes, and pregnancy testing when relevant. Urinalysis can look for blood or infection.

Imaging is selected according to the suspected cause. When biliary disease is suspected, abdominal ultrasound is commonly the first test because it can identify gallstones, gallbladder wall changes, fluid around the gallbladder, and bile-duct dilation without radiation. CT, MRI with MRCP, or a nuclear medicine gallbladder scan may be used when the initial study is negative, unclear, or a different diagnosis is suspected.

The American College of Radiology publishes evidence-based imaging recommendations for this symptom. See the ACR Appropriateness Criteria for Right Upper Quadrant Pain.

Does an Ultrasound Always Find Gallbladder Problems?

No test is perfect. Ultrasound is excellent for many gallstones and signs of cholecystitis, but the study can be limited by body habitus, bowel gas, anatomy, or the exact problem causing the symptoms.

If the ultrasound is negative or equivocal but the clinical picture still suggests biliary disease, clinicians may choose a HIDA scan, MRI with MRCP, or CT depending on the question they are trying to answer. The next test is determined by the symptoms, laboratory results, and what the first imaging study showed.

When Can Mild RUQ Pain Be Watched at Home?

Brief, mild pain that clearly follows an unusual workout, cough, or minor muscle strain and improves with rest may be reasonable to monitor if you otherwise feel well. Mild gas or indigestion that resolves quickly can also occur in the upper abdomen.

Home observation makes less sense when pain is unexplained, recurrent, steadily worsening, or repeatedly linked to meals. Recurrent gallbladder attacks often return, and delaying evaluation can allow complications to develop.

Avoid repeatedly treating unexplained RUQ pain with large amounts of NSAIDs such as ibuprofen or naproxen, especially if an ulcer is possible. If you need frequent pain medicine just to function, that itself is a reason to seek medical advice.

When Should You Go to the ER for Right Upper Quadrant Pain?

• Severe pain that is sudden, rapidly worsening, or does not let you get comfortable.
• RUQ pain lasting for hours with fever, chills, or repeated vomiting.
• Yellow skin or eyes, dark urine, or pale or clay-colored stool with abdominal pain.
• Fainting, confusion, severe weakness, or signs of shock.
• Black tarry stool, vomiting blood, or significant rectal bleeding.
• A hard, rigid, or very tender abdomen.
• Shortness of breath, coughing blood, chest pressure, or pain that begins suddenly with breathing difficulty.
• Severe pain after a significant fall, crash, or blow to the abdomen or ribs.
• Pregnancy with severe or persistent RUQ or epigastric pain, particularly with headache, vision changes, high blood pressure, or shortness of breath.
• Severe abdominal pain in a person who is immunocompromised, has advanced liver disease, or is otherwise medically fragile.

When Should You Make a Non-Emergency Appointment?

• The pain keeps returning after meals.
• Mild pain lasts more than a few days or is gradually becoming more frequent.
• You have persistent nausea, appetite change, or unexplained weight loss.
• You notice recurrent pale stool, dark urine, itching, or abnormal liver tests.
• You have urinary symptoms, recurrent flank pain, or blood in the urine.
• The pain interferes with sleep, exercise, work, or normal eating even if it is not severe.
• You are unsure whether the source is abdominal, chest, rib, or back pain.

Questions People Commonly Ask About RUQ Pain

What organ is directly under the right rib cage?

The liver occupies much of the space under the right ribs, and the gallbladder sits underneath the liver. The right kidney, part of the intestine, diaphragm, and lower right lung are nearby, so location alone cannot identify the source.

Is right upper quadrant pain always the gallbladder?

No. Gallbladder disease is a classic cause, but liver disease, ulcers, pancreatitis, kidney problems, pneumonia, pleurisy, rib or muscle strain, shingles, and other conditions can cause pain in the same area.

What does gallbladder pain feel like?

It is often a steady pain in the upper right or upper middle abdomen that can become intense and last from roughly 30 minutes to several hours. It may follow a heavy meal and can radiate to the right shoulder blade or back.

Can gas get trapped under the right ribs?

Gas in the colon can create pressure or cramping high in the abdomen. Gas pain usually fluctuates and may improve after passing gas or having a bowel movement. Persistent focal pain, fever, jaundice, or vomiting needs a different evaluation.

Can fatty liver cause right upper quadrant pain?

Fatty liver disease is often silent, but some people report vague right upper abdominal discomfort. Because many conditions can cause the same symptom, persistent pain should not be assumed to come from fatty liver without evaluation.

Can constipation cause pain under the right ribs?

Yes. Stool and gas in the right side of the colon can create pressure or cramping, but constipation usually comes with a change in bowel movements. Severe localized pain or systemic symptoms should not automatically be blamed on constipation.

Why does my right upper abdomen hurt after eating?

Gallbladder disease is an important possibility, particularly after fatty or heavy meals. Ulcer disease, dyspepsia, reflux, and pancreatitis can also interact with meals. Recurrent post-meal RUQ pain deserves medical evaluation.

Why does the pain go to my right shoulder blade?

Gallbladder and diaphragm irritation can cause referred pain toward the right shoulder or shoulder blade. This pattern supports a biliary cause but does not prove it.

Can anxiety cause right upper quadrant pain?

Stress and anxiety can intensify muscle tension and gastrointestinal symptoms, but new focal RUQ pain should not be labeled anxiety until concerning physical causes have been considered.

Can a kidney infection cause pain under the right ribs?

Yes. The right kidney sits high toward the back, and infection can cause pain in the side or back below the ribs. Fever, chills, nausea, and painful or frequent urination make kidney infection more likely.

What does liver pain feel like?

Liver-related discomfort is often described as a dull ache, pressure, or fullness under the right ribs rather than a brief cramp. Many liver diseases cause no pain, so jaundice, dark urine, swelling, itching, or abnormal blood tests may be more useful clues.

Should I worry about pain that only hurts when I press it?

Pain reproduced by pressing can come from a muscle, rib, abdominal wall, or inflamed internal structure. If the area is very tender or you also have fever, vomiting, jaundice, breathing problems, or worsening pain, seek medical assessment.

Can RUQ pain come from the lungs?

Yes. Lower-right pneumonia, pleurisy, pulmonary embolism, and other chest conditions can be felt near the upper abdomen, especially when the pain worsens with deep breathing or coughing.

What is the first test for right upper quadrant pain?

It depends on the clinical picture. When gallbladder or biliary disease is suspected, ultrasound is commonly the initial imaging test. Blood and urine testing are often performed at the same time, and CT, MRI, or a HIDA scan may follow when needed.

The Bottom Line

Right upper quadrant pain is a location, not a diagnosis. The gallbladder is a leading possibility when steady pain begins after eating and travels to the right shoulder or back, but liver, stomach, pancreas, kidney, lung, rib, muscle, nerve, and pregnancy-related problems can all produce pain under the right ribs.

The safest way to judge urgency is to look beyond the pain itself. Fever, jaundice, repeated vomiting, breathing difficulty, bleeding, faintness, severe tenderness, pregnancy warning signs, or pain that lasts for hours moves the situation out of the simple watch-and-wait category.

For recurrent or unexplained pain, a clinician can combine the symptom pattern with examination, blood and urine testing, and targeted imaging. That approach is far more reliable than trying to diagnose the organ from the exact spot that hurts.