The gallbladder gets removed when it causes more problems than it solves. In most cases, that means gallstones are triggering pain, infection, or dangerous blockages. But stones aren’t the only reason. Gallbladder removal (cholecystectomy) is the most common abdominal surgery in the United States, with over 1.2 million performed each year.
What Your Gallbladder Actually Does
Your gallbladder is a small, pear-shaped sac tucked beneath your liver. Its job is to store and concentrate bile, a digestive fluid your liver produces continuously. Between meals, bile flows into the gallbladder rather than into your intestine. There, water and electrolytes are reabsorbed, making the bile more potent.
When you eat something fatty, cells in your small intestine release a hormone that triggers the gallbladder to contract and squeeze concentrated bile into your digestive tract. That bile breaks large fat droplets into tiny ones your body can absorb. It’s a useful organ, but not an essential one. Your liver keeps making bile whether or not you have a gallbladder, which is why you can live normally without it.
Gallstones: The Most Common Reason
The vast majority of gallbladder removals happen because of gallstones. These are hardened deposits that form inside the gallbladder when the chemical balance of bile tips too far in one direction. There are two main types. Cholesterol stones, by far the more common, are made up of about 77% cholesterol by dry weight. Pigment stones are darker and smaller, composed primarily of calcium and bilirubin (a waste product from broken-down red blood cells). The two types form through different mechanisms, but both can cause the same problems.
Many people have gallstones and never know it. The trouble starts when a stone shifts and blocks the narrow duct that drains the gallbladder. This produces what’s often called a gallbladder “attack”: intense pain in the upper right abdomen, sometimes radiating to the back or right shoulder, often after a fatty meal. If the stone passes or dislodges on its own, the pain fades within a few hours. But once you’ve had one attack, more tend to follow, and each one carries the risk of something worse.
Inflammation and Infection
When a stone stays lodged in the duct, bile gets trapped inside the gallbladder. The organ swells, its walls thicken, and inflammation sets in. This is acute cholecystitis, and it’s a more serious situation than a simple gallstone attack. The pain doesn’t fade. It’s often accompanied by fever, nausea, and tenderness so sharp that pressing on the area makes you instinctively stop breathing in.
If acute cholecystitis goes untreated or keeps recurring, it can become chronic. The gallbladder wall stays thickened and scarred from repeated bouts of inflammation, and the organ gradually loses its ability to function. In the worst cases, the inflamed wall can develop a hole (perforation) or an abscess can form around the gallbladder. These complications are surgical emergencies.
Stones That Travel and Cause Bigger Problems
Sometimes a gallstone doesn’t just block the gallbladder. It escapes into the common bile duct, the main channel that carries bile from the liver to the intestine. A stone stuck there can block bile flow entirely, leading to jaundice (yellowing of the skin and eyes) and a serious bile duct infection.
Even more dangerous: the common bile duct shares an opening with the pancreatic duct. A stone lodged at that junction blocks digestive fluids from the pancreas, causing gallstone pancreatitis. Backed-up pancreatic enzymes start digesting the pancreas itself. This is extremely painful and can be life-threatening. If untreated, it can progress to pancreatic tissue death or widespread infection. Gallstone pancreatitis is one of the strongest reasons to remove the gallbladder promptly, because once it happens, it’s likely to happen again.
Removal Without Stones
Not every gallbladder removal involves gallstones. Two other conditions commonly lead to surgery.
Biliary dyskinesia means the gallbladder isn’t contracting properly. You get the same symptoms as gallstones (pain after eating, nausea, bloating) but imaging shows no stones at all. Doctors diagnose it with a specialized scan that measures how well the gallbladder empties. A normal gallbladder ejects more than 35% of its contents when stimulated. Below that threshold, the gallbladder is considered underperforming, and removal often resolves the symptoms.
Gallbladder polyps are growths on the inner wall of the gallbladder. Most are harmless, but larger ones carry a risk of harboring cancer. European guidelines recommend removing the gallbladder for any polyp larger than 10 millimeters, and for polyps larger than 6 millimeters when other risk factors are present. Smaller polyps are typically monitored with periodic ultrasounds.
How the Surgery Works
Nearly all gallbladder removals today are done laparoscopically. The surgeon makes a few small incisions in the abdomen, inserts a camera and thin instruments, and detaches the gallbladder from the liver. Many people go home the same day. Recovery takes about two weeks, and most people return to work within one to two weeks.
In some cases, the surgeon needs to switch to an open procedure, which involves a larger incision. This is more common when severe inflammation or scar tissue makes the laparoscopic approach unsafe. Open surgery requires a few days in the hospital and six to eight weeks of recovery. Complications from either approach are uncommon but can include bile duct injury, bile leakage, excessive bleeding, or irritation of the pancreas.
Life After Removal
Without a gallbladder, bile drips continuously from your liver into your small intestine instead of being stored and released in concentrated bursts. For most people, this works fine. Your body adapts, and you digest food normally.
Some people, however, notice changes. The most common are looser stools, bloating, and trouble tolerating fatty foods. About 35% of post-surgery patients experience diarrhea or nausea, and a significant number report fatty food intolerance and indigestion. These symptoms are sometimes grouped under the term “postcholecystectomy syndrome” and usually improve over weeks to months as your digestive system adjusts.
There’s no strict long-term diet you need to follow. In the first week or so after surgery, sticking to low-fat foods (3 grams of fat or less per serving) helps minimize digestive discomfort. Fried foods, greasy sauces, and heavy gravies are the most common triggers early on. Most people gradually reintroduce fattier foods as they feel comfortable and find they can eat normally within a few months.