What Are Gallstones?

Gallstones are hardened deposits that develop inside the gallbladder, a small pear-shaped organ located beneath the liver. The gallbladder stores bile, a digestive fluid produced by the liver that helps digest fats.

Gallstones can vary in size from tiny grains of sand to stones as large as a golf ball. Some patients may have a single stone, while others develop multiple stones.

There are two main types of gallstones:

Cholesterol stones (80–85%) – The most common type, formed mainly from cholesterol.

Pigment stones – Dark brown or black stones formed due to excess bilirubin, commonly seen in chronic liver disease or certain blood disorders.

How Are Gallstones Formed?

Gallstones develop when there is an imbalance in the composition of bile.

Common mechanisms include:

1. Excess Cholesterol

When bile contains more cholesterol than it can dissolve, cholesterol crystals form and gradually grow into stones.

2. Excess Bilirubin

Certain medical conditions increase bilirubin production, leading to pigment stone formation.

3. Poor Gallbladder Emptying

If the gallbladder does not empty completely, bile remains stagnant and stones gradually develop.

Who Is at Risk?

Risk factors include:

• Female gender
• Age above 40 years
• Obesity
• Rapid weight loss
• Diabetes
• Pregnancy
• Family history
• High-fat diet
• Certain medications
• Liver disease

However, gallstones can occur in healthy young individuals as well.

What Symptoms Do Gallstones Cause?

Many gallstones remain silent and never cause problems.

When symptoms occur, they commonly include:

• Pain in the right upper abdomen
• Pain after fatty meals
• Pain radiating to the back or right shoulder
• Nausea and vomiting
• Indigestion
• Bloating

The pain may last from 30 minutes to several hours.

When Should You Seek Medical Advice?

Consult a surgeon if you experience:

• Recurrent right upper abdominal pain
• Pain after eating
• Fever with abdominal pain
• Persistent vomiting
• Yellow discoloration of the eyes or skin (jaundice)
• Dark urine
• Severe abdominal pain lasting more than 4–6 hours

These symptoms may indicate complications requiring urgent treatment.

What Are the Complications of Gallstones?

If left untreated, gallstones may lead to:

• Acute cholecystitis (infection of the gallbladder)
• Gangrenous gallbladder
• Gallbladder perforation
• Empyema (pus-filled gallbladder)
• Common bile duct stones
• Obstructive jaundice
• Acute pancreatitis
• Cholangitis (infection of the bile ducts)

Early treatment helps prevent these potentially serious conditions.

How Are Gallstones Diagnosed?

Investigations may include:

• Ultrasound abdomen (first-line investigation)
• Liver function tests
• Complete blood count
• MRI/MRCP when common bile duct stones are suspected
• CT scan in selected cases

What Is the Treatment?

Observation

Patients with asymptomatic gallstones generally do not require surgery unless there are special indications.

Medicines

Currently, no medication reliably dissolves most gallstones. Medicines have limited success and are usually reserved for selected patients.

Laparoscopic Cholecystectomy – The Gold Standard

The definitive treatment for symptomatic gallstones is laparoscopic cholecystectomy, a minimally invasive procedure in which the gallbladder

is removed through small (5–10 mm) incisions using a high-definition camera and specialized instruments.

Advantages include:

• Small scars
• Less pain
• Faster recovery
• Minimal blood loss
• Short hospital stay
• Early return to work
• Lower risk of wound infection

Most patients can resume normal daily activities within one to two weeks.

What Is ICG Fluorescence Imaging?

One of the most significant advances in laparoscopic gallbladder surgery is Indocyanine Green (ICG) fluorescence imaging.

ICG is a safe fluorescent dye injected into a vein before surgery. It is taken up by the liver and excreted into the bile. 

Using a special near-infrared camera, the surgeon can visualize the biliary anatomy in real time.

The bile ducts glow bright green, making them easier to identify during surgery.

Why Is ICG Important in Difficult Cholecystectomy?

In patients with severe inflammation, recurrent attacks, gangrenous cholecystitis, obesity, or

dense adhesions, the normal anatomy may be distorted.

In these situations, ICG offers several advantages:

• Better identification of the cystic duct
• Improved visualization of the common bile duct
• Easier recognition of anatomical variations
• Reduced risk of bile duct injury
• Increased confidence during difficult dissections
• Enhanced surgical safety

Although ICG is an excellent adjunct, it does not replace meticulous surgical technique and obtaining the Critical View of Safety, which remains the cornerstone of safe laparoscopic cholecystectomy.

Recovery After Surgery

Following laparoscopic cholecystectomy:

• Walking is encouraged on the day of surgery.
• Light meals can usually be started within hours.
• Most patients are discharged within 24–48 hours.
• Normal activities can often be resumed within one to two weeks.
• Heavy lifting should be avoided for a few weeks, as advised by your surgeon.

Can You Live Without a Gallbladder?

Yes. The liver continues to produce bile even after the gallbladder is removed. Instead of being stored, bile flows directly into the intestine. 

Most patients lead completely normal lives without dietary restrictions after recovery.

Key Take-Home Messages

• Gallstones are common and often remain silent.
• Persistent pain, fever, jaundice, or vomiting should prompt immediate medical evaluation.
• Laparoscopic cholecystectomy is the safest and most effective treatment for symptomatic gallstones.
• Modern technologies such as ICG fluorescence imaging have improved the safety of surgery, especially in difficult gallbladder cases.
• Early consultation with an experienced laparoscopic surgeon can prevent serious complications and ensure faster recovery.
• Your health is precious. Timely diagnosis and appropriate treatment can make gallbladder surgery safe, effective, and life-changing.

Dr. Puneeth Thalasta
MS, MCh (Minimal Access Surgery, AIIMS New Delhi)
FSGE (RGUHS) FIAGES, FALS