Pain under Right Rib Cage:18 Causes & When to See a Doctor

Nearly 1 in 4 emergency room visits involve abdominal or chest-area pain — and a surprising number of those patients point to the same spot: pain under right rib cage. If you’ve ever pressed your hand against that area, wondering what on earth is going on in there, you’re far from alone.

Pain under right rib cage can range from a dull, nagging ache to a sharp, stabbing sensation that stops you in your tracks. The tricky part? That region houses several vital organs — your liver, gallbladder, right kidney, and part of your intestines — which means the cause could be anything from something you ate for lunch to a condition that needs urgent medical attention.

In this article, we will explore 18 of the most common causes of right-side rib pain, what symptoms to watch for, and when it’s time to call your doctor.

⚠️ Important: This article provides general information only. Not intended as medical advice. Consult your doctor before trying any remedies.

Why the Right Side? Understanding the Anatomy

Before diving into the causes, it helps to know what’s actually living under your right ribcage. This area — medically referred to as the right hypochondriac region — contains:

When any of these structures become inflamed, infected, blocked, or injured, pain under the right rib cage is often the result. Now, let’s break down the 18 most common culprits.

18 Common Causes of Pain Under Right Rib Cage

1. Gallstones (Cholelithiasis)

Gallstones are the #1 cause of sudden, severe pain under the right rib cage for millions of people worldwide.

Gallstones form when bile hardens into pebble-like deposits inside the gallbladder. When a stone blocks a bile duct, it triggers what’s called a biliary colic attack — intense pain that typically hits after a fatty meal and can last anywhere from 30 minutes to several hours.

Symptoms to watch for:

• Suddenly, intense pain in the upper right abdomen
• Pain that radiates to the right shoulder or back
• Nausea and vomiting
• Pain after eating greasy or fatty foods

💬 “Gallstone pain is often described as one of the most intense pains a person can experience — comparable to labor contractions.”

Who’s at risk? The classic “4 F’s” — Fat, Female, Forty, and Fertile — though gallstones affect all demographics.

2. Gallbladder Inflammation (Cholecystitis)

When a gallstone gets stuck in the cystic duct, it can cause the gallbladder to become inflamed — a condition called cholecystitis. Unlike a passing biliary colic attack, this pain is persistent and often accompanied by fever.

Key signs:

• Constant pain (not just after meals)
• Fever and chills
• Tenderness when pressing the upper right abdomen
• Nausea and vomiting

This is a medical emergency. If you suspect cholecystitis, don’t wait — head to the ER.

3.  Liver Disease (Hepatitis, Fatty Liver, Cirrhosis)

Your liver sits directly under the right rib cage, so any liver condition can cause discomfort or pain in that area. The three most common liver-related causes include:

• Hepatitis (A, B, or C): Viral infection causing liver inflammation
• Non-Alcoholic Fatty Liver Disease (NAFLD): Fat buildup in the liver, increasingly common in 2026
• Cirrhosis: Scarring of the liver tissue, often from long-term alcohol use or chronic hepatitis

Liver pain tends to be a dull, aching sensation rather than sharp pain, and it’s often accompanied by fatigue, jaundice (yellowing of skin/eyes), or dark urine.

4.  Kidney Stones (Right Kidney)

Kidney stones in the right kidney produce some of the most dramatic pain under right rib cage imaginable. The pain — called renal colic — comes in waves and can be excruciating.

Symptoms:

• Severe, cramping pain in the right flank (side and back)
• Pain that radiates to the groin
• Blood in urine (pink or red tint)
• Frequent urge to urinate
• Nausea

Small stones often pass on their own with plenty of water. Larger stones may require medical intervention.

5.  Urinary Tract Infection (UTI) or Kidney Infection (Pyelonephritis)

A simple UTI that travels up to the kidney becomes a kidney infection, which can cause significant pain in the right side under the rib cage if the right kidney is affected.

Signs of a kidney infection:

• Flank pain (side and back)
• High fever and chills
• Burning sensation when urinating
• Cloudy or foul-smelling urine
• Fatigue

Kidney infections require antibiotic treatment — don’t try to tough this one out.

6.  Pleuritis (Pleurisy)

The lungs are surrounded by a thin membrane called the pleura. When this membrane becomes inflamed — a condition called pleurisy — it causes sharp chest and rib pain that worsens with breathing.

Characteristics of pleurisy pain:

• Sharp, stabbing pain that gets worse when you inhale
• Pain may radiate to the shoulder
• Shallow breathing to avoid pain
• Sometimes accompanied by a dry cough

Pleurisy is often caused by a viral infection, but can also result from pneumonia, blood clots, or autoimmune conditions.

7.  Costochondritis (Rib Cartilage Inflammation)

Costochondritis is inflammation of the cartilage connecting the ribs to the breastbone. It’s a surprisingly common cause of rib cage pain that’s often mistaken for a heart attack or serious organ issue.

How to tell:

• Pain is reproducible when you press on the ribs
• Worsens with movement, coughing, or deep breathing
• Usually affects multiple rib areas
• No fever or other systemic symptoms

The good news? Costochondritis is typically not dangerous and often resolves with rest and anti-inflammatory medications.

8.  Irritable Bowel Syndrome (IBS) and Gas

Trapped gas and IBS can cause significant pain under the right rib cage, especially when gas accumulates in the hepatic flexure — the bend of the colon located right under the liver.

This is sometimes called hepatic flexure syndrome.

Symptoms:

• Bloating and distension
• Cramping pain that shifts location
• Relief after passing gas or having a bowel movement
• Alternating constipation and diarrhea (in IBS)

Dietary changes, probiotics, and stress management can make a big difference here.

9.  Liver Abscess

A liver abscess is a pus-filled pocket within the liver, usually caused by a bacterial or parasitic infection. It’s less common than other causes but can be serious.

Warning signs:

• Persistent fever
• Right upper abdominal pain
• Unintentional weight loss
• Night sweats
• Feeling generally unwell

This condition requires prompt medical treatment, typically with antibiotics and drainage.

10.  Pregnancy-Related Causes

During pregnancy — especially in the second and third trimesters — pain under the right rib cage is extremely common. As the uterus expands, it pushes upward against the ribs and organs.

Common pregnancy-related causes:

• Baby’s kicks or movements against the ribs
• Round ligament pain
• HELLP syndrome (a serious complication involving liver problems — requires immediate attention)
• Heartburn and acid reflux are pushing upward

⚠️ If you’re pregnant and experience severe right rib pain with headache, vision changes, or swelling, seek emergency care immediately — this could indicate HELLP syndrome or preeclampsia.

11.  Rib Fracture or Bruised Rib

A cracked or bruised rib — from a fall, sports injury, car accident, or even a severe coughing fit — causes localized pain that can be quite intense.

Signs of a rib injury:

• Pain that’s worse when breathing deeply, coughing, or moving
• Tenderness at a specific point on the rib
• Possible bruising or swelling
• Pain that doesn’t radiate

Rib fractures are diagnosed with X-ray or CT scan. Treatment usually involves rest, pain management, and time.

12.  Pneumonia (Right Lower Lobe)

Pneumonia affecting the lower right lobe of the lung can cause pain that feels like it’s coming from under the rib cage. This is called referred pain — the lung is inflamed, but the pain registers in the rib area.

Accompanying symptoms:

• Fever, chills, and sweating
• Productive cough (often with colored mucus)
• Shortness of breath
• Fatigue

Pneumonia requires medical evaluation and often antibiotic or antiviral treatment, depending on the cause.

13.  Liver Cancer or Liver Metastases

While less common, liver cancer or cancer that has spread to the liver (metastases) can cause pain or discomfort under the right rib cage. The liver may become enlarged, pressing against surrounding structures.

Symptoms that warrant urgent evaluation:

• Unexplained weight loss
• Loss of appetite
• Persistent fatigue
• Abdominal swelling
• Jaundice

Early detection dramatically improves outcomes. If you have risk factors (hepatitis B/C, heavy alcohol use, cirrhosis), regular screening is essential.

14.  Budd-Chiari Syndrome

Budd-Chiari syndrome occurs when blood clots block the veins draining the liver. It’s rare but serious, causing rapid liver enlargement and intense right-sided abdominal pain.

Key features:

• Suddenly, severe abdominal pain
• Rapid abdominal swelling (ascites)
• Jaundice
• Liver enlargement

This is a medical emergency requiring immediate hospitalization.

15.  Shingles (Herpes Zoster)

Shingles — a reactivation of the chickenpox virus — can cause intense, burning pain along a nerve pathway. When it affects nerves in the right thoracic region, it produces pain under the right rib cage that can appear before any rash is visible.

Shingles pain characteristics:

• Burning, shooting, or stabbing pain
• Sensitivity to touch (even clothing feels painful)
• Rash appears 1-5 days after pain starts (red blisters in a stripe pattern)
• More common in people over 50 or with weakened immunity

Antiviral medications work best when started within 72 hours of symptom onset.

16.  Muscle Strain or Overuse

Sometimes the cause of pain under right rib cage is refreshingly simple: you pulled a muscle. The intercostal muscles between the ribs, or the muscles of the abdominal wall, can be strained from:

• Heavy lifting
• Intense exercise (especially core workouts)
• Repetitive twisting motions
• Prolonged coughing or sneezing

How to tell it’s muscular:

• Pain worsens with specific movements
• Tenderness when pressing on the area
• No fever or other systemic symptoms
• Improves with rest and ice/heat

17.  Appendicitis (Early Stage)

Here’s a surprising one: early appendicitis can sometimes cause pain that starts around the belly button or even the right upper abdomen before migrating to the classic lower right location (McBurney’s point).

Warning signs of appendicitis:

• Pain that starts centrally and moves to the lower right
• Fever
• Nausea and vomiting
• Loss of appetite
• Pain that worsens over time

⚠️ Appendicitis is a medical emergency. If you suspect it, go to the emergency room immediately — a ruptured appendix is life-threatening.

18. Acid Reflux and GERD

Gastroesophageal reflux disease (GERD) causes stomach acid to flow back into the esophagus. While typically felt as heartburn in the chest, GERD can also cause pain or discomfort in the upper right abdomen, particularly after eating.

GERD symptoms:

• Burning sensation in the chest or throat
• Sour taste in the mouth
• Bloating and belching
• Pain that worsens when lying down or after meals
• Chronic cough or hoarseness

Lifestyle modifications (smaller meals, avoiding trigger foods, not lying down right after eating) and medications like proton pump inhibitors can provide significant relief.

How Doctors Diagnose the Cause of Right Rib Pain

When you see a doctor for pain under right rib cage, here’s what you can typically expect:

Step 1: Medical History

Your doctor will ask about the nature of your pain (sharp vs. dull), when it started, what makes it better or worse, and any associated symptoms.

Step 2: Physical Examination

They’ll press on different areas of your abdomen to check for tenderness, organ enlargement, or guarding.

Step 3: Diagnostic Tests

Gallstones vs. Kidney Stones vs. Liver Pain

Since these three are among the most common causes, here’s a side-by-side comparison to help you identify what you might be dealing with:

Types of Pain Under the Right Rib Cage You May Experience

• Pain under the right rib when breathing –  A pain that occurs when you breathe may be related to lung diseases like pneumonia and pleurisy.
• Pain under the right rib after eating – If you have pain after eating, it may be related to digestive problems such as indigestion, heartburn, or a peptic ulcer.
• Dull pain under the right rib cage – Some people may suffer from a dull ache under the right rib cage that comes and goes. This may be related to gall bladder stones or some issues with the kidneys. This pain can also change steadily from mild to severe and radiate to your upper back.
• Sudden sharp stabbing pain in the right side under the rib cage – A sudden and sharp pain around your rib cage indicates an injury or muscle pull. It could also be related to the inflammation of your organs.
• Sharp temporary cramping under right rib cage – Stomach gas is usually one of the common causes. You’d better pay attention to your diet.
• Pain under the left rib cage in the back – Kidney problems, such as kidney stones, may cause back pain.

Lifestyle Tips to Reduce Right Rib Cage Pain

For causes related to diet, digestion, and lifestyle, these evidence-based strategies can help:

For Gallbladder Health:

• Maintain a healthy weight (rapid weight loss increases gallstone risk)
• Eat a low-fat, high-fiber diet
• Stay hydrated — aim for 8 glasses of water daily

For Kidney Health:

• Drink plenty of water (the #1 prevention strategy for kidney stones)
• Reduce sodium and animal protein intake
• Limit oxalate-rich foods if prone to calcium oxalate stones

For Liver Health:

• Limit alcohol consumption
• Maintain a healthy BMI
• Exercise regularly — even 30 minutes of walking daily helps

For Digestive Issues (IBS, GERD, Gas):

• Eat smaller, more frequent meals
• Avoid trigger foods (fatty, spicy, or acidic foods)
• Try keeping a food diary to identify patterns
• Manage stress — the gut-brain connection is very real

For Muscle-Related Pain:

• Warm up before exercise
• Use proper lifting technique
• Apply ice for the first 48 hours after injury, then switch to heat

When Is Pain Under Right Rib Cage an Emergency?

Not all right rib pain requires a 911 call, but some symptoms demand immediate medical attention. Here’s a quick reference:

🔴 Go to the ER Immediately If You Have:

• Severe, sudden pain that doesn’t improve
• Pain with fever above 101°F (38.3°C)
• Yellowing of skin or eyes (jaundice)
• Vomiting blood or black/tarry stools
• Difficulty breathing
• Pain radiating to the left arm or jaw (possible heart attack)
• Rapid abdominal swelling
• Signs of shock (dizziness, rapid heart rate, pale skin)

🟡 See Your Doctor Soon If You Have:

• Pain lasting more than a few days
• Pain that keeps returning
• Unexplained weight loss
• Blood in urine
• Persistent nausea or loss of appetite

🟢 Monitor at Home If:

• Pain is mild and related to gas or bloating
• You recently had a minor injury
• Pain improves with rest or over-the-counter pain relievers
• No fever or other concerning symptoms

FAQs

1. Can anxiety cause pain under the right rib cage?

Yes! Anxiety can cause muscle tension, hyperventilation, and digestive upset — all of which can produce rib cage discomfort. Anxiety-related pain is usually diffuse and accompanied by other anxiety symptoms.

2. Is right rib pain always serious?

Not at all. Many cases are caused by gas, muscle strain, or minor digestive issues. However, persistent or severe pain always warrants medical evaluation.

3. Can poor posture cause right rib cage pain?

Absolutely. Slouching compresses the organs and puts strain on the intercostal muscles, leading to chronic rib discomfort — especially in people who sit at desks for long hours.

4. Why does my right rib hurt more after eating?

This pattern strongly suggests a gallbladder issue (gallstones or cholecystitis) since the gallbladder contracts after meals to release bile. It can also indicate GERD or IBS.

Conclusion

Pain under the right rib cage can stem from numerous causes, ranging from temporary digestive issues to more serious conditions affecting your liver, gallbladder, kidneys, or other organs. Understanding the potential sources of your discomfort can help you determine when home care is sufficient and when to seek professional medical help.

Pay attention to accompanying symptoms, the nature and duration of your pain, and how it responds to various activities or treatments. This information will be valuable to your healthcare provider in determining the underlying cause.

While this article provides general information about common causes of right rib cage pain, it cannot replace personalized medical advice. If you’re experiencing concerning symptoms, don’t hesitate to consult with a healthcare professional. Early diagnosis and treatment often lead to better outcomes and can prevent complications.