I now have enough information from the medical textbooks to give a thorough, well-cited answer.
Important note first: Pain in the right side of your abdomen could have many causes. This information is educational - please see a doctor for a proper evaluation, especially if the pain is persistent, severe, or comes with fever, nausea, or jaundice.
Could Your Pain Be From Gallstones?
Where Is the Gallbladder?
The gallbladder sits in the right upper quadrant (RUQ) of your abdomen - under your right rib cage, beneath the liver. "Low" pain could mean different things, so the exact location matters:
- If it is under the right ribs or in the upper-right belly area, that does fit the gallbladder region.
- If the pain is more in the lower-right or central lower abdomen, it is less likely to be the gallbladder directly.
What Does Gallstone Pain Actually Feel Like?
According to Harrison's Principles of Internal Medicine (22nd Edition), gallstone-related pain has specific characteristics:
- Location: Epigastric (middle-upper belly) or right upper quadrant - and it can radiate to the back, right shoulder blade, or lower chest.
- Character: Steady, aching or colicky in quality - not crampy in the classic sense.
- Duration: Usually lasts a few hours and then resolves. If it lasts longer, it may indicate a complication (like cholecystitis).
- Timing: Often triggered after a fatty or heavy meal. Symptoms frequently peak around midnight.
- NOT lower abdominal pain - pure gallstone pain does not typically cause low abdominal pain.
As Schwartz's Principles of Surgery (11th Edition) explains, gallstones cause symptoms when a stone migrates into the cystic duct, producing obstruction. This creates biliary colic - a constant, severe visceral pain from the resulting pressure buildup.
Is "Low" Pain Likely Gallstones?
Gallstone pain is characteristically in the upper abdomen (right upper quadrant or epigastrium), not the lower abdomen. If your pain is genuinely in the low right side, other causes are more likely:
| Cause | Location | Key Features |
|---|
| Gallstones / biliary colic | Right upper quadrant, epigastric | After fatty meals, lasts hours |
| Appendicitis | Lower right (RLQ) | Starts mid-belly, moves right, fever |
| Kidney stone / UTI | Lower right or flank | Radiates to groin, burning on urination |
| Muscle strain | Variable | Worse with movement |
| Ovarian cyst (if female) | Lower right | Comes and goes with cycle |
| Hernia | Lower abdomen | Bulge, worse when straining |
| Irritable bowel / constipation | Lower abdomen | Associated with bowel changes |
When to See a Doctor Urgently
See a doctor promptly if your pain is accompanied by:
- Fever or chills (could mean infection/cholecystitis or cholangitis)
- Yellowing of the skin or eyes (jaundice - may indicate a stone blocking the bile duct)
- Persistent vomiting
- Pain that does not go away after a few hours
- The pain is severe
What Would a Doctor Do?
A right upper quadrant ultrasound is the first-line test for gallstones - it is non-invasive, readily available, and highly accurate. Blood tests (liver enzymes, bilirubin, CBC) help detect complications.
Bottom line: True gallstone pain is typically in the upper-right abdomen, not the lower abdomen. If your pain is in the lower right area, there are other causes that need to be considered. Either way, it is worth getting evaluated by a doctor who can examine you and order an ultrasound if needed. Only about 20% of people with gallstones ever develop symptoms -
a 2024 review in Am Fam Physician is a good up-to-date overview of this topic.