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OverviewAetiologyPathophysiologyClinical features and red flagsInvestigationsDifferential diagnosisManagementComplicationsMonitoring and follow-upSpecial situationsCommon pitfallsQuestionsSources
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Educational draft · awaiting clinical reviewThe full textbook explains uncertainty but does not replace live national or local guidance, specialist advice, or current prescribing information.

Gallstones and biliary colic

Gastroenterology and hepatology · UK scope · Sources checked 27 Aug 2026 · Clinical review pending

RapidFull
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Time-critical presentation

Fever or rigors with jaundice, hypotension, delirium, rising lactate or organ dysfunction may represent ascending cholangitis rather than uncomplicated biliary colic. Begin emergency sepsis assessment and treatment and obtain urgent biliary source-control advice. Persistent localised pain, fever or guarding also requires assessment for acute cholecystitis and its complications.

Overview

Recognise uncomplicated biliary pain, separate it from inflammatory or obstructive emergencies, investigate the biliary tree logically and arrange definitive treatment for symptomatic stones.

Most gallstones are cholesterol-rich and remain silent. Symptoms arise when a stone transiently obstructs the cystic duct, increasing gallbladder pressure without sustained inflammation. The classic label 'colic' is misleading: the pain is commonly constant rather than cramping. It often builds after food, lasts long enough to interrupt activity and resolves completely when the obstruction releases. Dyspepsia, isolated bloating and reflux are non-specific and should not be attributed to stones solely because an ultrasound reports them.

The central diagnostic task is to decide whether disease is still confined to the gallbladder. Persistent focal tenderness and systemic inflammation suggest acute cholecystitis; jaundice or a cholestatic liver profile suggests common-duct obstruction; fever or organ dysfunction with obstruction suggests cholangitis; severe epigastric pain radiating to the back with raised lipase suggests pancreatitis. Cardiac, pulmonary, peptic, hepatic and renal causes remain important alternatives, particularly when the symptom pattern is atypical.

Aetiology

01

Cholesterol supersaturation

Most UK gallstones form when bile contains excess cholesterol relative to bile salts and phospholipids, allowing crystals to nucleate.

02

Pigment stone formation

Increased bilirubin load, infection or biliary stasis promotes pigment stones, including in chronic haemolysis and altered duct anatomy.

03

Gallbladder stasis and host risk

Age, pregnancy, obesity, rapid weight loss, ileal disease and reduced gallbladder emptying modify stone risk without making symptoms inevitable.

Pathophysiology

  1. 1
    Crystal growth

    Supersaturated bile nucleates microscopic crystals that aggregate within mucus and enlarge during gallbladder stasis between contractions.

  2. 2
    Transient cystic-duct obstruction

    A stone impacting during gallbladder contraction raises pressure and causes steady biliary pain until it dislodges.

  3. 3
    Migration or persistent blockage

    Continued cystic obstruction causes inflammation, while migration into the common duct can obstruct bile or pancreatic flow.

Clinical features and red flags

Typical uncomplicated attack

Steady epigastric or right-upper-quadrant pain reaches a plateau, may radiate to the scapula or back, causes nausea, and settles fully within hours without fever or jaundice.

Acute cholecystitis signalRed flag

Pain continuing beyond the expected attack, fever and local guarding or a convincing Murphy sign indicate sustained cystic-duct obstruction with inflammation rather than simple biliary colic.

Duct obstruction patternRed flag

Scleral or skin jaundice, dark urine, pale stool, pruritus or a cholestatic biochemical profile raises choledocholithiasis, stricture or malignancy and needs expedited imaging.

Sepsis behind obstructionRed flag

Rigors, fever, jaundice, hypotension, delirium or lactate elevation may represent ascending cholangitis; start emergency sepsis care and obtain urgent biliary-source-control advice.

Investigations

  1. 01
    Liver blood testsFirst step
    Why
    Identify cholestasis, hepatocellular injury and biochemical evidence that disease may extend beyond the gallbladder.
    Interpretation and limitations
    Normal results support but do not prove uncomplicated biliary colic; bilirubin and alkaline phosphatase elevation or transient marked aminotransferase change can accompany common-duct stone passage.
  2. 02
    Transabdominal ultrasound
    Why
    Detect gallbladder stones, assess wall and surrounding fluid, and measure intrahepatic and extrahepatic duct calibre.
    Interpretation and limitations
    Mobile echogenic shadowing foci support calculi. A negative scan does not exclude tiny stones, sludge or a distal duct stone, and wall thickening is not specific without clinical context.
  3. 03
    FBC and inflammatory markers
    Why
    Look for inflammation, anaemia and an alternative infectious or surgical process when symptoms are prolonged.
    Interpretation and limitations
    Uncomplicated biliary colic should not produce substantial systemic inflammation; leucocytosis or a rising CRP increases concern for cholecystitis, cholangitis or another complication.
  4. 04
    Serum lipase
    Why
    Investigate severe epigastric or back-radiating pain, vomiting, or suspected gallstone pancreatitis.
    Interpretation and limitations
    A value above three times the upper reference limit supports acute pancreatitis in the correct clinical setting; modest elevation is non-specific and must not replace assessment.

Differential diagnosis

01

Peptic or reflux disease

Burning linked to acid, reflux symptoms or endoscopic ulceration favours upper luminal disease; incidental gallstones may not explain chronic dyspepsia.

02

Acute cholecystitis

Sustained pain, fever, focal peritonism and inflammatory gallbladder changes indicate persistent inflammation rather than uncomplicated biliary colic.

03

Pancreatic, cardiac or vascular pain

Back radiation with enzyme elevation, exertional symptoms or severe pain out of proportion requires evaluation beyond the biliary tree.

Additional chapter-specific clues

Alternative dangerous painRed flag

Chest symptoms, exertional association, dyspnoea, haematemesis, peritonism, pulsatile mass or pregnancy-related concern should redirect assessment towards cardiac, vascular, perforation, pulmonary or obstetric pathways.

Management

01StableUncomplicated biliary painFirst stepA characteristic attack has resolved and there are no inflammatory, obstructive or systemic danger features.+
  1. 1Confirm the symptom chronology, examine after analgesia, check liver blood tests and arrange or review a high-quality abdominal ultrasound.
  2. 2Offer appropriate oral analgesia, hydration and individual food-trigger advice while checking contraindications, pregnancy and current medicines.
  3. 3Refer symptomatic gallbladder stones for laparoscopic cholecystectomy discussion and document how recurrent attacks should access urgent care.
  4. 4Revisit the diagnosis if symptoms are atypical, persist after cholecystectomy or do not correlate with gallbladder pathology.
02EscalatePossible gallstone complicationEscalationPain persists or fever, jaundice, marked vomiting, peritonism, hypotension or altered cognition develops.

Complications

01

Acute cholecystitis

Persistent cystic-duct impaction produces gallbladder oedema, infection, necrosis or perforation rather than a resolving pain episode.

02

Choledocholithiasis and cholangitis

Migrated stones obstruct the common duct, causing jaundice and potentially life-threatening infected biliary hypertension with sepsis risk.

03

Gallstone pancreatitis or ileus

Ampullary obstruction can trigger pancreatitis, while chronic fistulation may rarely allow a large stone to obstruct small bowel.

Monitoring and follow-up

  • Recheck temperature, heart rate, blood pressure, pain trajectory and abdominal signs before discharge from an acute episode.
  • Review liver tests and duct imaging promptly if jaundice appears or attacks become more prolonged between referral and surgery.
  • Track recurrent emergency presentations and expedite the surgical plan rather than repeatedly supplying analgesia without definitive ownership.
  • After ERCP, observe under the local endoscopy protocol for pancreatitis, bleeding, infection and perforation, and document stent follow-up.
  • Following cholecystectomy, investigate continuing biliary-type pain on its merits instead of assuming every symptom represents a retained stone.

Special situations

Colic is often constant

The traditional name describes episodic obstruction, not necessarily a wave-like pain; renal or bowel colic is more typically cramping.

Stone size misleads

Small calculi may migrate into the common duct, while a large gallbladder stone can remain asymptomatic; symptoms and anatomy guide decisions.

Transient transaminitis matters

A short aminotransferase spike can accompany stone passage before a more recognisable cholestatic pattern develops or tests normalise.

Ultrasound has a blind spot

Bowel gas and distal duct anatomy limit direct visualisation, so a reassuring gallbladder scan cannot cancel credible biochemical obstruction.

Incidental is not symptomatic

A common radiological finding should not be used to explain non-specific indigestion without a compatible biliary pain pattern.

Common pitfalls

  1. 01

    Calling persistent febrile right-upper-quadrant pain ordinary biliary colic.

  2. 02

    Treating every dyspeptic symptom as gallstone-related because ultrasound found incidental calculi.

  3. 03

    Using a normal bilirubin or non-dilated duct to exclude a recently passed stone.

  4. 04

    Ordering diagnostic ERCP before safer MRCP or EUS in a stable patient.

  5. 05

    Repeatedly prescribing opioids without progressing definitive surgical referral.

  6. 06

    Failing to state who will remove or exchange a biliary stent.

Practice

Two practice questions

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Question 1 of 2
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Gastroenterology and hepatologyOriginal SBA

Classic resolved biliary pain

A well adult has recurrent steady right-upper-quadrant pain lasting two hours after meals. Ultrasound confirms gallbladder stones; liver tests and duct calibre are normal. What is the best definitive plan?

Choose one answer, then submit
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Sources and review status4 sources · checked 27 Aug 2026 · clinical review pending+
Sources

Sources and review status

National guidance is shown before implementation-dependent detail. Typical adult dose examples remain subject to patient factors, contraindications and the live BNF or specialist protocol. Source check completed 27 Aug 2026; clinical approval remains outstanding.

  • NICE CG188 gallstone disease recommendations
  • NICE CKS gallstones topic
  • BNF gallstones treatment summary
  • BSG ERCP quality improvement standards

Editorial contact: Doctor’s Passport editorial team. Source-check date is separate from clinical approval. Report a content problem · Content changes

Authoring stateComplete draftClinical stateAwaiting reviewJurisdictionUnited Kingdom
Definitive care prevents recurrent attacks and complications. NICE advises laparoscopic cholecystectomy for symptomatic gallbladder stones, commonly as day surgery when appropriate. People with no symptoms and a normal biliary tree should not be medicalised. While waiting, provide realistic safety-netting rather than promising that dietary avoidance prevents migration; smaller or lower-fat meals may reduce an individual's triggers but do not dissolve established stones.

Key points

  • Biliary colic is usually a steady epigastric or right-upper-quadrant pain lasting from roughly half an hour to several hours, often with nausea and sometimes radiating to the right scapula or back.
  • Pain that persists, fever, rigors, jaundice, hypotension, confusion, peritonism or repeated vomiting is not reassuring biliary colic; assess urgently for cholecystitis, cholangitis, pancreatitis or another abdominal emergency.
  • NICE recommends liver blood tests and transabdominal ultrasound when gallstone disease is suspected; a normal examination between episodes does not invalidate a characteristic history.
  • Ultrasound establishes gallbladder stones and duct calibre but cannot reliably exclude a distal common-duct stone; abnormal liver tests or duct dilatation should trigger MRCP, with EUS when MRCP remains non-diagnostic.
  • Incidental, asymptomatic stones in an otherwise normal gallbladder and biliary tree generally need reassurance rather than treatment under NICE CG188.
  • Offer laparoscopic cholecystectomy for symptomatic gallbladder stones after shared assessment of operative fitness, pregnancy, anticoagulation, competing diagnoses and the person's priorities.
  • Analgesia treats the episode but does not remove the stone reservoir; NSAIDs can be effective when renal, gastrointestinal, cardiovascular and pregnancy risks permit.
  • 05
    Magnetic resonance cholangiopancreatography
    Why
    Map the duct non-invasively when ultrasound shows duct dilatation or liver tests suggest a common-duct stone.
    Interpretation and limitations
    A filling defect or obstructed duct guides therapeutic planning. A non-diagnostic MRCP with continuing probability can be followed by specialist EUS rather than diagnostic ERCP.
  • 06
    Pregnancy test and ECG when indicated
    Why
    Protect imaging and operative choices and investigate important mimics in people for whom pregnancy or cardiac ischaemia is plausible.
    Interpretation and limitations
    Results change the pathway rather than confirm gallstones; do not let a known stone history conceal ectopic pregnancy or acute coronary syndrome.
    • +
    1. 1Use ABCDE, obtain observations and venous access, give safe analgesia and fluid resuscitation when clinically hypovolaemic.
    2. 2Send FBC, renal and liver profiles, CRP, lipase, glucose, coagulation and lactate, adding cultures before antibiotics when this does not delay treatment.
    3. 3Arrange urgent surgical or gastroenterology review and targeted imaging; activate sepsis, cholangitis, pancreatitis or acute-cholecystitis pathways as findings dictate.
    4. 4Do not discharge solely because pain improves after opioids when biochemical, examination or systemic alarm features remain.
    03DuctPossible common-duct stoneJaundice, cholestatic liver tests or duct dilatation suggests migration outside the gallbladder.+
    1. 1Exclude cholangitis immediately and determine whether the patient needs admission, antibiotics and time-critical drainage rather than elective investigation.
    2. 2Use MRCP after ultrasound when NICE criteria are met; request EUS through the specialist service if MRCP cannot settle a credible suspicion.
    3. 3DefinitivePlan therapeutic ERCP or surgical duct clearance for confirmed stones, followed by definitive gallbladder management where appropriate.
    4. 4Record ownership of any temporary stent and of interval cholecystectomy so that symptom relief does not create unsafe loss to follow-up.
    Key medicines and prescribing safety3 treatments · regimens, roles and cautions+
    Provides analgesia for uncomplicated biliary colic and may reduce the need for rescue opioid treatment.

    Non-steroidal anti-inflammatory analgesic

    Use one formulary NSAID at the lowest effective adult dose for the shortest necessary course, checking the current BNF.

    Avoid or individualise with renal injury, ulcer or gastrointestinal bleeding risk, anticoagulation, significant cardiovascular disease, NSAID-sensitive asthma, frailty or pregnancy.

    An alternative or adjunct when an NSAID is unsuitable, including as part of opioid-sparing analgesia.

    Paracetamol

    Use the current BNF adult oral or intravenous regimen, reducing exposure in low body weight, malnutrition or hepatic risk.

    Count all combination products and recent self-treatment; overdose can be occult and requires the separate emergency toxicology pathway.

    Treats severe breakthrough pain when simpler agents are inadequate or contraindicated while definitive assessment continues.

    Short-acting opioid rescue

    Titrate a locally approved immediate-release regimen to effect with repeat sedation, respiratory rate and pain assessment.

    Opioids can cause respiratory depression, vomiting, delirium and diagnostic masking; use smaller increments in frailty or organ impairment and provide no driving advice.

    Advise prompt reassessment for fever, jaundice, pain lasting longer than the person's usual attack, dark urine, pale stool or inability to maintain hydration while awaiting surgery.