Pain on the right side of your abdomen can come from dozens of different sources, because several major organs sit on that side of your body. The cause ranges from trapped gas that resolves on its own to conditions like appendicitis that need emergency treatment. Where exactly the pain is, how it feels, and how long it lasts are the biggest clues to what’s going on.
What’s on the Right Side of Your Abdomen
Your right side houses different organs depending on whether the pain is higher up (near your ribs) or lower down (near your hip). The right upper area contains your liver, gallbladder, part of the pancreas, the right kidney, and sections of the small intestine and colon. The right lower area contains your appendix, the ascending colon, more small intestine, and, in women, the right ovary and fallopian tube.
This is why location matters so much. Pain just below your right ribcage points to a completely different set of problems than pain near your right hip bone.
Gas and Indigestion: The Most Common Culprit
Before jumping to serious causes, it’s worth knowing that gas is by far the most frequent reason for abdominal pain on either side. Gas pain can feel like knots in your stomach, and you may feel it moving through your intestines. Unlike pain from organ problems, gas pain can show up anywhere in your abdomen and even radiate up into your chest.
The key difference between gas and something more serious: gas pain typically lasts minutes to a few hours and resolves on its own, especially after burping or passing gas. If you feel clear relief afterward, that’s a strong sign it was just gas. Pain that stays put, keeps getting worse, or doesn’t respond to passing gas deserves more attention.
Gallbladder Problems
The gallbladder sits tucked under your liver on the right side, and when a gallstone blocks one of its ducts, the result is a specific type of pain called biliary colic. This pain comes on suddenly, builds steadily to a peak, and then gradually fades. It doesn’t pulse or come in waves during a single episode, though you can have repeated episodes over time. A single episode can last anywhere from 20 minutes to several hours.
Most people feel it under the right ribcage, but it commonly radiates to the right shoulder or back. The classic trigger is eating a large or fatty meal. Fats in your small intestine signal the gallbladder to squeeze out bile, and if a stone is in the way, pain follows. If you notice a pattern of intense upper-right pain after rich meals, your gallbladder is a likely suspect.
Appendicitis
Appendicitis is the condition most people worry about when the right side hurts, and for good reason. It’s common, it can escalate quickly, and the pain has a distinctive pattern. It typically starts as a vague ache near your belly button, then over a matter of hours migrates down and to the right, settling in your lower right abdomen. The pain gets worse when you move, cough, sneeze, or take deep breaths.
Other symptoms that tend to show up alongside the pain include loss of appetite, nausea or vomiting, a low-grade fever (generally below 100.4°F), bloating, and constipation or diarrhea. The pain usually doesn’t go away on its own. If you’re experiencing pain that started around your navel and has shifted to your lower right side, particularly if it’s been getting steadily worse over several hours, that combination is highly suggestive of appendicitis and warrants urgent evaluation.
Kidney Stones
A stone moving through the right kidney or ureter causes pain that’s hard to ignore. It typically hits abruptly, and its character is different from most other abdominal pain. Kidney stone pain waxes and wanes in intensity, sometimes called “colicky” pain because it comes in waves of severe cramping. The location of the pain shifts as the stone moves: it often starts in the flank (the side of your back between the ribs and hip) and radiates downward toward the groin.
Blood in the urine is the other hallmark sign. If you have sudden, intense pain on your right side that seems to come from your back and wraps around toward your lower abdomen or groin, a kidney stone is a strong possibility.
Liver-Related Pain
The liver itself doesn’t have many pain-sensing nerves, but the capsule surrounding it does. When the liver swells from conditions like hepatitis, fatty liver disease, or vein congestion, that capsule stretches and produces a dull, persistent ache under the right ribcage. This pain tends to feel more like a constant heaviness or pressure than a sharp stab, and it usually develops gradually over days or weeks rather than hitting suddenly.
Causes Specific to Women
Women have additional structures on the right side of the lower abdomen that can be sources of pain.
Ovarian cysts on the right ovary typically cause a dull ache, bloating, and pain during periods. Most cysts are harmless and resolve without treatment. However, if a cyst ruptures, the pain can become sudden and sharp, sometimes described as stabbing.
Ectopic pregnancy occurs when a fertilized egg implants outside the uterus, most often in a fallopian tube. It produces lower abdominal pain along with nausea, vaginal bleeding, and a missed period. This condition is most dangerous between 6 and 10 weeks of pregnancy and requires emergency treatment.
Pelvic inflammatory disease is an infection of the reproductive organs that causes lower abdominal pain, abnormal vaginal discharge, fever, and pain during sex. It’s treated with antibiotics, but delaying treatment can lead to lasting damage.
Muscle Strain vs. Organ Pain
Sometimes right-sided pain isn’t coming from an organ at all. Abdominal wall strain from exercise, heavy lifting, or even a bad coughing fit can produce pain that mimics internal problems. The difference lies in how the pain behaves. Muscle pain feels sharp and localized. You can usually point to the exact spot, and it gets worse when you tense your abdominal muscles, twist, or press on the area.
Pain from internal organs tends to feel deeper, duller, and more spread out. It’s harder to pinpoint. You might sense that something hurts “in there” without being able to put a finger on exactly where. If your pain sharpens when you flex your abs or changes clearly with body position but feels fine when you’re still, a muscle strain is more likely than an organ problem.
When Right-Sided Pain Is an Emergency
Certain combinations of symptoms signal that something serious is happening and you need immediate medical care:
- Pain so severe it interrupts your ability to function
- Pain with persistent vomiting or an inability to keep liquids down
- Complete constipation with severe pain, especially an inability to pass gas
- Pain near your belly button that migrates to the lower right and worsens over hours
- Fever combined with worsening abdominal pain
- Pain that feels familiar but is distinctly worse than previous episodes
If you’ve had previous abdominal surgery, that’s also worth mentioning, since adhesions and scar tissue can create new sources of pain or increase the risk of bowel obstruction. Pain that starts mild and escalates steadily over hours, rather than coming and going, is one of the most reliable signals that something needs prompt attention.