Quick answer: cholelithiasis means stones in the gallbladder; choledocholithiasis means stones in the common bile duct. Silent gallbladder stones often need no treatment, while symptomatic disease may require gallbladder removal. Bile duct stones need specialist assessment and clearance; infection or pancreatitis can make this an emergency. See gallbladder surgery and bile duct assessment and NICE gallstone disease recommendations.
| Dimension | Cholelithiasis | Choledocholithiasis |
|---|---|---|
| What it is | Gallstones inside the gallbladder | A stone lodged in the main bile duct |
| Location of the stone | Inside the gallbladder | In the common bile duct, after migrating from the gallbladder |
| Common symptoms | Often silent; episodic upper-abdominal pain after fatty meals | Jaundice, dark urine, pale stools, fever or severe constant pain |
| Urgency | Usually planned when symptomatic; complications may need urgent care | Urgent — risk of cholangitis or pancreatitis |
| Standard treatment | Observation if silent; laparoscopic cholecystectomy when indicated | Duct clearance by ERCP or surgery, plus gallbladder removal when appropriate |
Breaking down the words
The Greek roots make it easier:
- •'chole' = bile
- •'docho' = duct
- •'lithiasis' = stone formation
So:
- •Cholelithiasis = bile + stone formation = stones in the gallbladder.
- •Choledocholithiasis = bile + duct + stone formation = stones in the bile duct.
Same family of stones; different location; very different consequences.
Cholelithiasis — the routine problem
Gallstones can be present without symptoms. Stones inside the gallbladder become a problem only when they:
- •Block the cystic duct, causing biliary colic — severe right upper abdominal pain after meals.
- •Trigger inflammation of the gallbladder wall (cholecystitis).
- •Escape into the bile duct (where they become choledocholithiasis).
Symptomatic gallbladder stones may be treated with laparoscopic cholecystectomy. Urgency, hospital stay and recovery depend on the findings and individual health. NICE gallstone treatment recommendations.
Choledocholithiasis — the dangerous cousin
Once a stone migrates from the gallbladder into the common bile duct, the situation changes completely. Unlike the gallbladder, the bile duct cannot tolerate a stone for long — it blocks bile flow from the liver and creates the conditions for two serious complications:
- •Acute cholangitis — bacterial infection of the obstructed duct (life-threatening if untreated).
- •Acute pancreatitis — when the stone obstructs the pancreatic duct outlet (severity ranges from mild to life-threatening).
Symptoms that point to choledocholithiasis
- •Yellowing of the eyes or skin (jaundice)
- •Dark, tea-coloured urine
- •Pale, clay-coloured stools
- •Itching of the skin
- •Right upper abdominal pain, often more severe than typical biliary colic
- •Fever and shaking chills (Charcot's triad)
- •Severe central pain radiating to the back (suggests pancreatitis)
Any of these in a patient with known gallstones requires same-day assessment.
How they are diagnosed
Cholelithiasis is diagnosed on abdominal ultrasound. Choledocholithiasis often needs MRCP (magnetic resonance cholangio-pancreatography), the non-invasive gold standard for visualising the bile duct.
Blood tests show characteristic patterns: bilirubin, ALP and GGT are typically elevated in choledocholithiasis but normal in uncomplicated cholelithiasis.
How they are treated
Cholelithiasis: silent stones often need no treatment. Symptomatic gallbladder stones may need cholecystectomy; complications can require urgent care.
Choledocholithiasis: the bile duct can be cleared with ERCP or surgery, with gallbladder removal when appropriate. Clearance may occur before or during cholecystectomy; timing depends on infection, pancreatitis, anatomy and fitness for surgery. NICE recommendations on bile duct clearance.
Why the distinction matters for patients
Knowing which condition you have helps you understand:
- •How urgently you need treatment
- •Whether you need ERCP before surgery
- •What hospital stay and recovery to expect
- •Which warning symptoms to watch for If you are unsure from your reports, please bring them to the consultation — clarifying this is one of the most important things we do at the first visit.