Gallstones (Cholelithiasis)

Overview

Gallstones (cholelithiasis) are solid masses that form in the gallbladder or biliary tract when bile contains abnormally high levels of cholesterol or bilirubin (Lammert et al., Nature Reviews Disease Primers, 2016). They are among the most prevalent and costly digestive disorders in the Western world, with an estimated adult prevalence of 10–20%; in the United States alone, more than 6 million men and 14 million women have gallbladder disease, and over 700,000 cholecystectomies are performed each year at a cost approaching $6.5 billion annually (Portincasa & Wang, Yamada's Textbook of Gastroenterology, 2022; Morris-Stiff et al., Clinical Gastroenterology and Hepatology, 2023).

A key concept for patients is that having gallstones is not the same as having gallstone disease (Lammert et al., Nature Reviews Disease Primers, 2016). Roughly 80% of people with gallstones remain asymptomatic throughout life, and these "silent" stones are often found incidentally on imaging done for another reason (Gana et al., Cochrane Database, 2018). Gallstone disease is defined by the symptoms and complications the stones cause — most commonly biliary colic (episodic right-upper-quadrant pain), and less commonly the complications that arise when a stone migrates and obstructs the biliary tree (Lammert et al., Nature Reviews Disease Primers, 2016). Approximately 20% of people with gallstones eventually develop symptoms, usually heralded by at least one attack of biliary pain before any serious complication occurs (Lammert et al., Nature Reviews Disease Primers, 2016; Patel & Jepsen, American Family Physician, 2024).

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Causes

Gallstones form when the normal balance of bile components is disrupted, allowing cholesterol or bilirubin to precipitate into solid stones (Duhancioglu et al., Abdominal Radiology, 2024). The type of stone reflects the underlying mechanism:

• Cholesterol stones — the predominant type (more than 75–90% of stones in Western populations), these form when bile becomes supersaturated with cholesterol, either from excess cholesterol secretion or reduced bile salts, combined with accelerated crystal nucleation and gallbladder hypomotility (impaired emptying) (Sell & Gee, JOMI, 2022; Duhancioglu et al., Abdominal Radiology, 2024).

• Black pigment stones — composed of calcium bilirubinate, these form when unconjugated bilirubin is increased, as in chronic hemolysis (sickle cell disease, thalassemia, hereditary spherocytosis), cirrhosis, or in patients on total parenteral nutrition with gallbladder stasis (Sell & Gee, JOMI, 2022; Gana et al., Cochrane Database, 2018).

• Brown pigment stones — form in infected or stagnant bile ducts, typically from bacterial or parasitic infection, and tend to arise within the bile ducts rather than the gallbladder (Sell & Gee, JOMI, 2022; Lammert et al., Nature Reviews Disease Primers, 2016).

Cholesterol stone formation is strongly tied to genetic predisposition acting together with metabolic factors — obesity, insulin resistance, dyslipidemia, and the metabolic syndrome (Portincasa & Wang, Yamada's Textbook of Gastroenterology, 2022).

Risk Factors

Recognized risk factors for gallstone disease include (Madden et al., Cochrane Database, 2024; Portincasa & Wang, Yamada's Textbook of Gastroenterology, 2022):

• Age over 40 — prevalence rises steadily with age

• Female sex — stones are 2–3 times more common in women, a difference that narrows with age (Gallaher & Charles, JAMA, 2022)

• Pregnancy and multiparity

• Overweight and obesity, and excess visceral fat (Xiong et al., PLoS One, 2024)

• Rapid weight loss or weight gain — including after bariatric surgery and with very-low-calorie diets

• Metabolic factors — type 2 diabetes, dyslipidemia, insulin resistance, and the metabolic syndrome (Portincasa & Wang, Yamada's Textbook of Gastroenterology, 2022)

• Family history / genetic predisposition (lithogenic genes)

• Ethnicity — highest among American Indian and Hispanic populations (up to 35% in Mapuche Indians and 27% in Hispanic individuals), lower in sub-Saharan African and Asian populations (Gallaher & Charles, JAMA, 2022)

• Hemolytic disorders (sickle cell disease, thalassemia) — a common cause of pigment stones, especially in children (Gallaher & Charles, JAMA, 2022)

• Total parenteral nutrition, certain medications, and a diet high in fat / low in fiber (Duhancioglu et al., Abdominal Radiology, 2024)

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How Gallbladder Disease Affects the Body

The gallbladder stores and concentrates bile — a mixture of water, cholesterol, bilirubin, and bile salts that the liver produces continuously to aid digestion of fats and fat-soluble vitamins (Madden et al., Cochrane Database, 2024). When bile composition becomes abnormal (too much cholesterol or bilirubin) or the gallbladder fails to empty properly, stones form (Duhancioglu et al., Abdominal Radiology, 2024).

As long as stones sit quietly in the gallbladder, they typically cause no harm (Gana et al., Cochrane Database, 2018). Problems arise when a stone moves and obstructs — the clinical picture depends on where the stone lodges (Duhancioglu et al., Abdominal Radiology, 2024). A stone impacting the cystic duct causes biliary colic and, if it persists, acute cholecystitis; a stone passing into the common bile duct causes obstruction (choledocholithiasis), which can in turn produce jaundice, cholangitis, or gallstone pancreatitis (Baiu & Hawn, JAMA, 2018; Patel & Jepsen, American Family Physician, 2024). Over the very long term, chronic irritation from gallstones is also associated with an increased risk of gallbladder cancer (Xiong et al., PLoS One, 2024).

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Complications

Approximately 20% of patients with gallstone disease develop complications, nearly all caused by distal migration of a stone into the cystic or common bile duct (Patel & Jepsen, American Family Physician, 2024):

• Acute Cholecystitis — the most common complication; inflammation and infection of the gallbladder from a stone obstructing the cystic duct, causing pain lasting beyond 5–6 hours with fever and a positive Murphy's sign (Patel & Jepsen, American Family Physician, 2024).

• Choledocholithiasis — a stone in the common bile duct, occurring in 10–20% of patients with symptomatic gallstones, causing jaundice, dark urine, and clay-colored stools (Patel & Jepsen, American Family Physician, 2024; Baiu & Hawn, JAMA, 2018).

• Gallstone pancreatitis — inflammation of the pancreas when a stone obstructs at the sphincter of Oddi/ampulla (Patel & Jepsen, American Family Physician, 2024).

• Ascending cholangitis — a potentially life-threatening infection of an obstructed biliary tree, classically presenting with fever, jaundice, and right-upper-quadrant pain (Markotic et al., Cochrane Database, 2020; Patel & Jepsen, American Family Physician, 2024).

• Less common complications — Mirizzi syndrome, gallstone ileus, and gallbladder cancer with chronic disease (Xiong et al., PLoS One, 2024).

Importantly, serious complications are usually preceded by at least one episode of biliary pain, which is a central reason symptomatic stones are treated (Lammert et al., Nature Reviews Disease Primers, 2016).

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Symptoms and Signs

Most gallstones are asymptomatic and cause no signs (Gana et al., Cochrane Database, 2018). When symptoms occur, the hallmark is biliary colic — episodic, severe, relatively steady pain in the right upper quadrant or epigastrium (Johnston & Kaplan, New England Journal of Medicine, 1993):

• Pattern — pain often begins after a fatty meal, builds over about an hour, and lasts from roughly 30 minutes up to several hours before easing; it can radiate to the right scapula or shoulder (Sell & Gee, JOMI, 2022; Johnston & Kaplan, New England Journal of Medicine, 1993).

• Associated symptoms — nausea and vomiting frequently accompany attacks (Xiong et al., PLoS One, 2024).

• Non-specific symptoms — bloating, belching, heartburn, and fatty-food intolerance may occur but overlap heavily with reflux, dyspepsia, and other conditions and have low predictive value (Johnston & Kaplan, New England Journal of Medicine, 1993).

Warning signs of a complication include pain lasting more than 5–6 hours, fever or chills, jaundice (yellowing of skin or eyes), dark urine, or persistent vomiting — these point to cholecystitis, choledocholithiasis, cholangitis, or pancreatitis rather than simple biliary colic (Patel & Jepsen, American Family Physician, 2024; Baiu & Hawn, JAMA, 2018).

Diagnosis

Diagnosis combines the clinical history with imaging and selective laboratory testing (Madden et al., Cochrane Database, 2024):

• Abdominal ultrasound is the first-line test — highly sensitive and specific for gallbladder stones and widely available (Madden et al., Cochrane Database, 2024).

• Laboratory tests (liver function tests, bilirubin, lipase, white-cell count) are typically normal in uncomplicated disease; abnormalities suggest a complication such as choledocholithiasis, cholangitis, or gallstone pancreatitis (Patel & Jepsen, American Family Physician, 2024).

• MRI / MRCP or endoscopic ultrasound is used when ultrasound is inconclusive or bile duct stones are suspected (Madden et al., Cochrane Database, 2024; Baiu & Hawn, JAMA, 2018).

• HIDA (cholescintigraphy) scan may be used when cystic-duct obstruction or acute cholecystitis is suspected but ultrasound is equivocal (Baiu & Hawn, JAMA, 2018).

Because gallstones are so often incidental, a central diagnostic task is confirming that a patient's symptoms are genuinely caused by the stones rather than by a coexisting condition (Johnston & Kaplan, New England Journal of Medicine, 1993).

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Differential Diagnosis

Upper-abdominal pain attributed to gallstones must be distinguished from (Johnston & Kaplan, New England Journal of Medicine, 1993; Gallaher & Charles, JAMA, 2022):

• Acute cholecystitis, choledocholithiasis, cholangitis, and gallstone pancreatitis (complications of the same disease)

• Peptic Ulcer Disease and gastritis

• GERD / hiatal hernia and functional dyspepsia

• Acute hepatitis

• Acute appendicitis

• Renal or ureteral colic

• Irritable bowel syndrome

• Cardiac ischemia (myocardial infarction) — particularly with epigastric or retrosternal radiation

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Lifestyle Modifications

While lifestyle measures cannot reliably dissolve existing stones, they can reduce the risk of new stone formation and help limit attacks (Lammert et al., Nature Reviews Disease Primers, 2016):

• Maintain a healthy weight and avoid rapid weight loss — crash dieting and rapid loss promote stone formation; when major weight loss is planned (including after bariatric surgery), ursodeoxycholic acid can reduce the risk of gallstone formation (Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022).

• Favor a diet lower in refined fat and higher in fiber (Gallaher & Charles, JAMA, 2022).

• Avoid large, fatty meals during symptomatic periods, as they provoke gallbladder contraction and can trigger attacks (Sell & Gee, JOMI, 2022).

• Manage metabolic risk factors — obesity, diabetes, and dyslipidemia (Portincasa & Wang, Yamada's Textbook of Gastroenterology, 2022).

Current evidence on modifying dietary fat specifically to treat established gallstone disease remains limited (Madden et al., Cochrane Database, 2024).

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Treatment Options

Treatment is determined by whether the stones are asymptomatic, symptomatic, or complicated (Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022):

• Asymptomatic gallstones — generally require no treatment; expectant "watch-and-wait" management is standard, because most never cause symptoms and prophylactic surgery is not justified by the low complication rate (Patel & Jepsen, American Family Physician, 2024; Lammert et al., Nature Reviews Disease Primers, 2016).

• Symptomatic gallstones (biliary colic) — laparoscopic cholecystectomy is the definitive, gold-standard treatment, because the gallbladder is the source of the stones and the risk of recurrence and complications persists as long as it remains (Lammert et al., Nature Reviews Disease Primers, 2016; Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022).

• Conservative management — for uncomplicated symptomatic gallstones, observation with as-needed analgesia is a safe, cost-effective alternative in selected patients, per the randomized C-GALL trial, making this a shared-decision-making situation (Ahmed et al., BMJ [C-GALL], 2023).

• Acute complications — require prompt, specific treatment (e.g., early cholecystectomy for acute cholecystitis, ERCP for common bile duct stones, and management of pancreatitis or cholangitis) (Baiu & Hawn, JAMA, 2018; Markotic et al., Cochrane Database, 2020).

• Oral dissolution therapy (ursodeoxycholic acid) — reserved for patients who cannot or will not have surgery and who have small, non-calcified cholesterol stones; it works slowly and recurrence is high (30–43% within 3–5 years), so it is no longer a routine strategy (Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022; Han et al., PLoS One, 2023).

Prophylactic cholecystectomy despite being asymptomatic is considered only in specific high-risk groups — porcelain gallbladder, stones larger than 3 cm, gallbladder polyps, sickle cell anemia, certain Native American populations, and before organ transplantation — because of elevated cancer or complication risk (Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022; Patel & Jepsen, American Family Physician, 2024).

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When to See a Doctor

Anyone who experiences a characteristic biliary colic attack — steady, severe right-upper-quadrant or epigastric pain lasting 30 minutes or more, often after a fatty meal — should be evaluated, even if the pain has resolved, since a first attack usually signals that previously silent stones have become symptomatic and tend to recur (Johnston & Kaplan, New England Journal of Medicine, 1993; Lammert et al., Nature Reviews Disease Primers, 2016). Incidentally discovered (asymptomatic) gallstones should be discussed with a physician but usually require only reassurance and observation (Patel & Jepsen, American Family Physician, 2024).

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When to Seek Treatment

Seek urgent or emergency care when symptoms suggest a complication rather than simple biliary colic (Patel & Jepsen, American Family Physician, 2024; Baiu & Hawn, JAMA, 2018):

• Pain lasting more than 5–6 hours

• Fever or chills

• Jaundice (yellowing of the eyes or skin), dark urine, or clay-colored stools

• Persistent vomiting

• Severe, worsening, or band-like upper-abdominal pain (possible pancreatitis)

These features raise concern for acute cholecystitis, choledocholithiasis, cholangitis, or gallstone pancreatitis, all of which require prompt treatment (Markotic et al., Cochrane Database, 2020; Baiu & Hawn, JAMA, 2018).

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Long‑Term Outlook

After laparoscopic gallbladder removal, most patients live entirely normally with durable relief of biliary pain and no long-term dietary restrictions, because bile continues to flow directly from the liver into the intestine (Lammert et al., Nature Reviews Disease Primers, 2016). A minority experience transient loose stools that usually resolve, and a small proportion have persistent dyspeptic symptoms (post-cholecystectomy syndrome) — often because not all upper-abdominal symptoms were truly biliary in origin, underscoring the importance of accurate diagnosis and realistic expectations (Han et al., PLoS One, 2023; Ahmed et al., BMJ [C-GALL], 2023). Patients managed conservatively for uncomplicated disease can also do well, though some will eventually proceed to surgery as symptoms recur (Ahmed et al., BMJ [C-GALL], 2023).

Related Reading and Videos

Read more in our articles Gallbladder and Bile Duct Disease Explained: From Gallstones to Cholecystitis, Bile Duct Stones, and Beyond and Do I Need My Gallbladder Removed? A Surgeon’s Decision Framework. Watch What Actually Happens in the Operating Room During My Surgery? on our video library. Related conditions include Biliary Colic (Gallbladder Attacks from Gallstones), Biliary Dyskinesia (Functional Gallbladder Disorder) and Pancreatitis. Treatments that may be involved include Laparoscopic Cholecystectomy (Minimally Invasive Gallbladder Removal) and Supermodel Lap Chole™ & Supermodel Robotic Chole™.

Prognosis

For the majority with asymptomatic stones, the prognosis is excellent — most remain symptom-free, and the risk of ever developing symptoms rises only gradually (roughly 10% at 5 years, 19% at 10 years, and 26% at 15 years), with serious complications uncommon (about 0.3–3% per year) (Alzoubi et al., PLoS One, 2025; Agresta et al., Langenbeck's Archives of Surgery, 2015). Once biliary pain begins, however, the disease tends to recur, which is why symptomatic stones are treated (Lammert et al., Nature Reviews Disease Primers, 2016). With definitive treatment, the outlook is very good: laparoscopic cholecystectomy is a safe, curative, high-volume operation (Portincasa & Wang, Yamada's Atlas of Gastroenterology, 2022).

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Why Choose Dr. de la Cruz‑Muñoz

Managing gallstone disease well begins with correctly distinguishing which stones are truly causing symptoms and matching treatment to the individual — from reassurance and watchful waiting for silent stones, to shared decision-making for uncomplicated biliary pain, to prompt definitive surgery for complicated disease (Patel & Jepsen, American Family Physician, 2024; Ahmed et al., BMJ [C-GALL], 2023). As a board-certified surgeon with advanced expertise in minimally invasive and robotic foregut and biliary surgery, Dr. Nestor de la Cruz-Muñoz, MD, FACS, DABOM provides a thorough evaluation — ultrasound, targeted labs, and additional imaging when bile duct stones or complications are suspected — and counsels patients candidly on the full range of options, including conservative management consistent with the latest randomized evidence (Baiu & Hawn, JAMA, 2018; Ahmed et al., BMJ [C-GALL], 2023). When gallbladder removal is indicated, he offers minimally invasive (laparoscopic/robotic) cholecystectomy with strict adherence to safe-cholecystectomy principles, and sets realistic expectations about symptom relief and recovery (Lammert et al., Nature Reviews Disease Primers, 2016). He has published on his technique for gallbladder surgery in select patients which he has named the Supermodel Lap Chole™ and Supermodel Robotic Chole™.

Dr. de la Cruz-Muñoz has performed more than 15,000 minimally invasive procedures over more than 25 years in practice, including complex foregut, hernia, gallbladder and abdominal operations as well as bariatric surgery.

If you are in South Florida, visit our gallbladder surgery in Miami page to see how evaluation and treatment work at our practice.