https://doi.org/10.53453/ms.2025.6.6
Gallbladder stones: how to recognize, diagnose, and treat - a
literature review
Ieva Bružaitė
1
, Linas Prapiestis
1
, Aistė Česnulevičienė
2
1
Faculty of Medicine, Lithuanian University of Health Sciences, Kaunas, Lithuania
2
Lithuanian University of Health Sciences, Kaunas Clinics, Department of Family Medicine Kaunas, Lithuania
Abstract
Background. Gallstone disease is a prevalent digestive disorder, affecting 10–15% of adults worldwide. Although
the disease is usually asymptomatic, in certain cases, it can cause severe complications that require urgent
treatment.
Aim. To evaluate current knowledge on cholelithiasis, including its epidemiology, risk factors, pathogenesis,
diagnostic approaches, treatment options, and preventive strategies.
Material and Methods. A comprehensive literature review was conducted using the PubMed database, focusing
on English-language studies published between 2015 and 2025. Studies were selected based on relevance to
epidemiology, pathogenesis, risk factors, diagnosis, and treatment.
Results. Cholelithiasis develops due to an interplay of modifiable and non-modifiable risk factors. Cholesterol
supersaturation, bile stasis and inflammation contribute to gallstone formation. Ultrasound remains the first-line
diagnostic tool. Treatment ranges from conservative management to laparoscopic cholecystectomy, which is the
gold standard for symptomatic cases. Preventive strategies include lifestyle modifications and pharmacological
interventions in high-risk patients.
Conclusion. Gallstone disease remains a major global health concern due to its high prevalence and potential
complications. Advances in imaging and surgical techniques have improved outcomes, but prevention through
lifestyle modifications remains crucial. Future research should focus on personalized risk assessment and novel
therapeutic strategies.
Keywords: gallstones, cholelithiasis, biliary tract diseases, gallbladder diseases, laparoscopic cholecystectomy.
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Medical Sciences 2025 Vol. 13 (4), p. 65-75, https://doi.org/10.53453/ms.2025.6.6
65
1. Introduction
Gallstone disease, otherwise known as
cholelithiasis, is one of the most prevalent
digestive disorders on a global scale, affecting
millions of individuals each year. While the
mortality rate is relatively low, the high
incidence of the condition gives rise to
significant healthcare concerns (1). The
prevalence of gallstones in adults ranges from
10% to 15% in the United States and Europe,
with similar rates observed in Lithuania (2). The
majority of gallstones form within the
gallbladder; however, in some cases, gallstones
can migrate through the cystic duct into the bile
ducts, leading to conditions such as
choledocholithiasis and hepatolithiasis.
Although many cases remain asymptomatic,
gallstones can lead to severe complications,
including acute cholecystitis and pancreatitis,
necessitating timely medical intervention (3).
Given the high incidence of the disease and its
potential for serious outcomes, there is a clear
need for the advancement of diagnostic methods,
the improvement of treatment options, and the
development of effective prevention strategies,
in order to reduce the burden on both patients
and healthcare systems (4).
2. Methods
A comprehensive literature review was
conducted using the PubMed database to
identify relevant studies on cholelithiasis, its
epidemiology, risk factors, pathogenesis,
diagnostic approaches, treatment options, and
preventive strategies. The search strategy
employed a combination of keywords, including
"gallstones", "cholelithiasis", "gallbladder
stones" and "gallstone disease."
Inclusion criteria:
• Articles published between 2015 and 2025 to
ensure the inclusion of recent and up-to-date
findings.
• Publications written in English.
• Peer-reviewed original research articles,
systematic reviews, meta-analyses, and
clinical guidelines.
• Studies focused on the epidemiology, risk
factors, pathogenesis, diagnosis, treatment,
or prevention of gallstone disease
(cholelithiasis).
• Studies involving human subjects.
Exclusion criteria:
• Articles published in languages other than
English.
• Studies published prior to 2015.
• Case reports, conference abstracts, editorials,
and opinion pieces.
• Studies focusing exclusively on pediatric
populations or rare genetic disorders unless
directly relevant to gallstone disease.
• Articles lacking accessible full text.
In total, 40 articles were included in the review
based on their compliance with the established
inclusion criteria. This systematic approach
provides a detailed and current review of the
existing knowledge and developments in the
management of cholelithiasis.
3. Results
3.1. Ethiology
The formation of gallstones is influenced by a
complex interplay of modifiable and non-
modifiable risk factors (5). Among the
modifiable risk factors, conditions such as
dyslipidemia, obesity, metabolic syndrome,
smoking, type 2 diabetes, and the use of certain
medications – including ceftriaxone, estrogens,
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and thiazide diuretics – have been strongly
associated with an increased risk of gallstone
formation (6). Conversely, non-modifiable risk
factors encompass female sex, pregnancy, and a
family history of gallbladder disease (5). The
incidence of gallstones rises sharply with age,
with individuals aged 40 to 69 experiencing a
fourfold higher risk compared to younger adults
(7). Furthermore, the presence of certain medical
conditions, including cirrhosis, Crohn's disease,
and hyperbilirubinemia, has been identified as a
risk factor for gallstone formation (8) .
One of the key mechanisms by which obesity
contributes to gallstone formation is through
increased hepatic cholesterol synthesis and
secretion into bile, leading to cholesterol
supersaturation (9). Moreover, obesity is
frequently associated with insulin resistance,
which can further compromise bile acid
metabolism and gallbladder function (10). It is
also noteworthy that rapid weight loss, whether
due to extreme dieting or bariatric surgery, can
also predispose individuals to gallstones by
reducing gallbladder motility and impairing bile
clearance (8). The association between
dyslipidemia and gallstone disease has been well
documented (10). Elevated levels of non-high-
density lipoprotein (non-HDL) cholesterol have
been demonstrated to be associated with a higher
incidence of gallstones, thereby underscoring the
role of abnormal lipid metabolism in the
pathogenesis of cholelithiasis (6).
Hormonal factors have been demonstrated to be
particularly relevant in the formation of
gallstones, especially among women of
reproductive age, who have been shown to be
four times more likely to develop gallstones than
men (11). However, this gender disparity
narrows after menopause (7). The role of
estrogen is particularly significant in this regard,
as it has been demonstrated to increase
cholesterol secretion into bile while decreasing
bile salt secretion (12). This, in turn, results in
cholesterol supersaturation and, consequently,
gallstone formation. Conversely, progesterone
exerts a detrimental effect by reducing
gallbladder motility, leading to bile stasis and,
consequently, an elevated risk of stone
development (13).
Diabetes mellitus is another significant
contributing factor to gallstone formation,
primarily due to autonomic neuropathy-induced
gallbladder dysfunction (14). Gallbladder stasis,
a prevalent complication in diabetes, results in
impaired bile emptying and elevated bile
lithogenicity (13). A study of 51 diabetic
subjects, categorized into those with no
neuropathy, diabetic peripheral neuropathy, and
diabetic autonomic neuropathy, demonstrated
that patients with autonomic neuropathy
exhibited significantly reduced gallbladder
ejection fractions, thereby underscoring the
association between diabetes and gallstone
disease (15).
It is therefore vital to understand these diverse
risk factors and their underlying mechanisms if
we are to achieve early prevention, risk
stratification, and effective management of
gallbladder stone disease. The identification of
individuals at high risk and the implementation
of preventive measures can lead to a significant
reduction in the burden of gallstone disease on
individuals and healthcare systems (16).
3.2. Pathogenesis
Gallstones are categorized into three distinct
types: cholesterol stones, pigment stones, and
mixed stones, which are characterized by their
own unique mechanisms of formation (17). The
development of gallstones is influenced by a
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67
combination of genetic predisposition,
metabolic imbalances, biliary stasis, gut
microbiota, and infections (18). These factors
contribute to the crystallization and aggregation
of stone-forming substances in bile (19).
The formation of cholesterol gallstones has been
linked to genetic factors, as variations in genes
involved in cholesterol metabolism and bile acid
regulation can increase susceptibility to
gallstone formation (2). Research suggests that
mutations in the ATP-binding cassette G8
(ABCG8) and cytochrome 7A1 (CYP7A1)
genes affect cholesterol transport and bile acid
synthesis, leading to supersaturated bile and a
higher risk of gallstone development (18).
Furthermore, excessive hepatic cholesterol
secretion can lead to bile supersaturation, a
primary factor in cholesterol crystallization (20).
Pigment stones, which are primarily composed
of calcium bilirubinate, are classified as black or
brown stones. Black pigment stones typically
develop in conditions involving chronic
hemolysis, such as sickle cell disease and
hereditary spherocytosis, which result in
excessive bilirubin production and its
subsequent accumulation in bile (20). In
contrast, brown pigment stones are strongly
associated with biliary infections, particularly
those involving anaerobic bacteria, which
produce β-glucuronidase, an enzyme that
hydrolyses conjugated bilirubin, leading to
calcium bilirubinate precipitation (21).
A pivotal factor in gallstone formation is
cholestasis, which results in impaired bile flow
and the accumulation of stone-forming
substances (18). Biliary obstruction, infections
or hepatobiliary dysfunction can alter bile
composition, increasing the likelihood of
gallstone development (21). The formation of
gallstones is a multifaceted process influenced
by a complex interplay of genetic, metabolic, gut
microbiota, and bile flow dynamics (18).
3.3. Diagnostics
3.3.1. Symptoms
In most cases, gallstones remain asymptomatic
and are detected incidentally during imaging for
unrelated abdominal conditions (11). Research
indicates that merely 20% of patients with
asymptomatic gallstones progress to clinically
significant complications (8). The hallmark
symptom of gallstone disease is biliary colic,
characterized by acute and rapidly escalating
pain in the right upper quadrant or epigastric
region (22). The pain often radiates to the right
shoulder or the area between the scapulae, a
phenomenon known as Collins' sign (23).
Patients may also complain of nausea, vomiting,
bloating, and diaphoresis. The pain is typically
triggered by the consumption of fatty meals, as
gallbladder contractions attempt to expel bile
past an obstructing stone (24). The duration of
these episodes can range from several minutes to
a few hours (25). In more severe cases, there may
be progression to acute cholecystitis, presenting
with persistent right upper quadrant pain, fever
and leukocytosis, which often requires surgical
intervention (24). When a gallstone blocks the
common bile duct, the condition is referred to as
choledocholithiasis, which may manifest with
symptoms such as jaundice, dark urine, pale
stools, and increased liver enzyme levels (26).
Rarely, gallstones may also result in gallstone
pancreatitis, manifesting as epigastric pain
radiating to the back, severe nausea, and
systemic inflammation (24).
3.3.2. Diagnostic tests
The National Institute for Health and Care
Excellence (NICE) has provided guidelines
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advising that patients who show symptoms
indicative of gallstone disease should have blood
tests conducted to evaluate liver function
parameters. These parameters include bilirubin,
alkaline phosphatase, gamma-glutamyl
transferase (GGT), alanine aminotransferase
(ALT), lipase, and inflammatory markers (11).
The conclusive diagnosis of cholelithiasis is
established through imaging methods, with
ultrasound, magnetic resonance
cholangiopancreatography (MRCP), and
endoscopic ultrasound (EUS) being the most
frequently used techniques (27).
Ultrasound is the preferred imaging technique
for diagnosing gallstones because it is widely
available, cost-effective, and non-invasive (11).
Typically, gallstones manifest as hyperechoic
structures, casting acoustic shadows, and their
mobility can be assessed by repositioning the
patient (20). The sensitivity and specificity of
ultrasound for detecting gallstones range from
81% to 83%, but increase significantly when
performed by an experienced radiologist, thus
making it the gold standard for gallbladder stone
diagnosis (11).
Endoscopic ultrasound (EUS) represents a
sophisticated technique with a high sensitivity of
94–98% for detecting small gallstones or biliary
sludge in patients with biliary pain but normal
abdominal ultrasound findings (20). It is
particularly useful in patients with unexplained
acute or recurrent pancreatitis, where
microlithiasis (biliary sludge) might be the cause
(24). However, it is important to note that EUS
cannot be performed in patients with previous
gastric surgeries that alter normal
gastrointestinal anatomy (20).
Furthermore, the role of computed tomography
scan (CT) and magnetic resonance imaging
(MRI) in diagnosing cholelithiasis is limited. CT
is not generally recommended for the detection
of gallbladder stones due to its relatively low
sensitivity for small, radiolucent cholesterol
stones, which may not be visible on standard
imaging procedures (28). Research by Peter J.
Fagenholz and others shows that CT fails to
identify cholelithiasis in 40% of cases, while
Joss R. Wertz and others found that CT may fail
to detect up to 20% of patients with gallstones
(29,30). Furthermore, CT is unable to effectively
visualize bile composition, thus rendering it a
suboptimal diagnostic modality in comparison to
ultrasound for routine gallbladder stone
detection (28).
Conversely, MRI, including Magnetic
Resonance Cholangiopancreatography (MRCP),
is not a primary imaging technique for
gallbladder stones. While MRCP has been found
to have a high sensitivity for bile duct stones
(choledocholithiasis), its role in detecting
gallbladder stones is limited (26). The visibility
of small gallstones may be compromised, and
the cost-effectiveness of MRI in comparison to
ultrasound for routine cholelithiasis diagnosis is
questionable (31).
3.4 Complications
It is estimated that between 1 - 3% of patients
diagnosed with gallstones experience a
gallstone-related complication each year (32).
This risk is evident in both symptomatic and
asymptomatic individuals. Patients with a
history of gallstone symptoms have a higher 10-
year cumulative risk of complications (6%)
compared to those who were previously
asymptomatic (3–4%) (11). Studies indicate that
up to 72% of symptomatic gallstone patients
develop ongoing biliary pain or serious
complications, including acute cholecystitis, an
inflammatory condition caused by cystic duct
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obstruction; gallstone pancreatitis, which results
from stones blocking the pancreatic duct, leading
to pancreatic inflammation (33). Moreover,
biliary tract obstruction can lead to jaundice and
liver dysfunction, while advanced gallbladder
inflammation may result in emphysematous
cholecystitis and perforation, increasing the risk
of sepsis and peritonitis (34). Post-surgical
complications are reported in approximately
11% of patients, with 2% requiring further
treatment for major complications (35). Beyond
acute complications, gallstones are recognized
as a major risk factor for gallbladder, pancreatic,
and colorectal cancers (5).
3.5 Treatment
For asymptomatic individuals, a watch-and-wait
strategy is generally preferred, as the risk of
complications remains low. However, in high-
risk patients, including those with a porcelain
gallbladder, large gallstones (>3 cm), or
underlying hematologic disorders such as sickle
cell disease, prophylactic cholecystectomy may
be indicated (11). Furthermore,
immunocompromised patients, individuals with
diabetes, and certain ethnic groups—such as
Native Americans, Hispanics, and Latinos—are
predisposed to gallstone-related complications
and may benefit from early surgical intervention
(36). It is important to emphasize that the
primary objective of management should be the
prevention of gallstone formation. The most
effective issues for prevention are lifestyle
modifications, such as maintenance of a healthy
body mass index, regular physical activity, and a
balanced diet (11). Although pharmacological
prevention is not routinely recommended,
ursodeoxycholic acid (UDCA) has demonstrated
effectiveness in decreasing the formation of
gallstones among high-risk individuals,
especially those experiencing rapid weight loss
after bariatric surgery (36). It is crucial to note
that the effectiveness of UDCA is limited to
cholesterol gallstones and treatment typically
requires a prolonged duration of 6 to 24 months,
and that this medication does not show efficacy
against pigment or calcified stones (23).
The choice between conservative treatment and
surgical intervention for symptomatic gallstone
disease depends on the severity of the symptoms,
the likelihood of recurrence, and the potential for
complications (23). Patients with mild, transient
biliary colic may be managed conservatively
with analgesics and lifestyle modifications (37).
Common medications employed in this context
include nonsteroidal anti-inflammatory drugs
(NSAIDs) (e.g., ibuprofen), paracetamol,
opioids, and antispasmodics such as
butylscopolamine (23). However, it is important
to recognize that up to 50% of patients who are
managed conservatively for gallstone disease
may necessitate surgical intervention within five
years because of recurrence of symptoms or
complications (37). For patients who are not
suitable for immediate surgical intervention,
alternative treatment options such as
extracorporeal shock wave lithotripsy (ESWL)
are available (38). Nevertheless, the utilization
of these treatments has diminished due to their
limited efficacy and high incidence of
recurrence. ESWL demonstrates optimal
efficacy for solitary, radiolucent cholesterol
stones with a diameter of up to 2 cm; however,
recurrence rates exceed 50% within a five-year
timeframe (23).
When surgical treatment is indicated,
laparoscopic cholecystectomy remains the gold
standard due to its minimally invasive technique,
shorter hospital stay and lower postoperative
complication rate (39). Several studies have
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demonstrated that laparoscopic cholecystectomy
reduces postoperative morbidity, pneumonia
risk, and wound infections in comparison with
open cholecystectomy (25). However, it is
important to note that conversion to open surgery
is necessary in 2% to 15% of cases due to severe
inflammation, unclear anatomy, or previous
adhesions (39). The Critical View of Safety
technique is imperative in preventing bile duct
injury, a grave complication that occurs in 0.3–
0.7% of cases (40). A small subset of patients (5–
40%) experience persistent digestive symptoms
after cholecystectomy, a condition known as
post-cholecystectomy syndrome (PCS). The
symptoms associated with this condition include
dyspepsia, diarrhea, bloating, and right upper
quadrant pain, and are often attributed to biliary
dyskinesia, retained stones, or sphincter of Oddi
dysfunction. While the majority of cases do
resolve over time, some patients require further
dietary modifications, medications, or additional
interventions (34).
4. Discussion
Gallbladder disease presents several clinical
challenges, primarily due to its often-silent
progression - many patients remain
asymptomatic until complications arise. These
complications - such as acute cholecystitis,
choledocholithiasis, or gallstone pancreatitis—
can be severe and require urgent intervention.
Diagnostic difficulties also pose a challenge, as
small stones or biliary sludge may be missed on
standard imaging, and symptoms can mimic
other gastrointestinal disorders. Even after
surgical treatment, a subset of patients
experience post-cholecystectomy syndrome,
leading to ongoing digestive issues. Managing
high-risk patients, including those with diabetes
or multiple comorbidities, requires careful
planning due to increased surgical risks.
Additionally, the growing prevalence of obesity
and metabolic disorders contributes to a rising
burden on healthcare systems, emphasizing the
need for improved prevention, early detection,
and personalized treatment strategies.
5. Conclusions
1. Many cases are asymptomatic. Additionally,
gallstones can lead to severe conditions such as
acute cholecystitis, choledocholithiasis, and
pancreatitis, requiring timely medical
intervention.
2. The interplay of genetic predisposition,
metabolic factors, and bile composition
alterations plays a crucial role in gallstone
formation.
3. Ultrasound remains the gold standard for
diagnosing gallstones, while MRCP and EUS are
valuable for assessing bile duct involvement.
4. Conservative management is an option for
mild cases, laparoscopic cholecystectomy
remains the definitive treatment for symptomatic
gallstone disease due to its minimally invasive
technique and lower risk of complications.
5. Preventive strategies, including lifestyle
modifications and selective pharmacological
interventions, can reduce gallstone formation,
particularly in high-risk individuals.
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