Biliary Tract Disorder

Biliary tract disorders affect the network of organs and tubes that produce, store, and transport bile—a digestive fluid made by your liver. These conditions can range from common problems like gallstones to more complex inflammatory diseases, and understanding them is key to getting the right treatment and living well.

Table of contents

• What Is the Biliary Tract?
• Types of Biliary Tract Disorders
• Risk Factors
• Signs and Symptoms
• Diagnosis
• Treatment Approaches
• Living With Biliary Tract Disorders

What Is the Biliary Tract?

The biliary tract is part of your digestive system. It includes your gallbladder and a network of tubes called bile ducts. Your liver makes a digestive juice called bile, which helps break down fats in your food. Your gallbladder stores bile between meals, and when you eat, it releases bile through the bile ducts into your small intestine^[3].

The bile ducts include tubes inside your liver (intrahepatic ducts) and outside your liver (extrahepatic ducts). The right and left hepatic ducts from the liver join together to form the common hepatic duct. This connects with the cystic duct from your gallbladder to create the common bile duct, which carries bile to your small intestine^[15].

Types of Biliary Tract Disorders

Different diseases can affect the biliary tract and interfere with the normal flow of bile. The most common conditions include gallstones, inflammation of the gallbladder or bile ducts, strictures (narrowing of the ducts), and infections^[3].

Gallstones and Related Conditions

Gallstones are extremely common—approximately 20.5 million people in the United States have gallbladder disease, with 14.2 million of them being women^[1]. These stones form when substances in bile harden into solid particles. Most gallstones are made primarily of cholesterol, while others, called pigment stones, are made mainly of calcium bilirubinate^[1].

About 80% of people with gallstones have no symptoms at all. However, when symptoms do occur, they typically include pain in the upper right area of the abdomen, often called biliary colic. This pain happens when a stone temporarily blocks the cystic duct. If the blockage continues, the gallbladder becomes inflamed, leading to cholecystitis—an acute inflammation and infection of the gallbladder^[1].

Stones can also move into the common bile duct, a condition called choledocholithiasis. This occurs in up to 10% of cases with acute cholecystitis and can cause serious complications, including blockage of the pancreatic duct, which may lead to pancreatitis (inflammation of the pancreas)^[1][5].

Cholangitis

Ascending cholangitis is a serious condition involving an infected and obstructed biliary tree. It commonly results from bile duct stones, strictures, or injuries to the bile ducts. This infection is often caused by gram-negative bacteria or gram-positive Enterococci^[5].

Primary sclerosing cholangitis (PSC) is a rare, progressive disease that causes chronic inflammation and scarring of the bile ducts. This scarring impairs bile flow and leads to liver damage over time. Many people have no symptoms in early stages, but as the disease advances, they may experience fatigue, itching, abdominal pain, jaundice, and unintended weight loss. Complications can include infections, vitamin deficiencies, and liver failure^[15].

Primary biliary cholangitis (PBC), previously called primary biliary cirrhosis, is a chronic autoimmune liver disease that gradually damages the small bile ducts within the liver. This leads to bile buildup, inflammation, and eventual scarring (cirrhosis). The condition most commonly affects women over age 40 and progresses slowly. Early symptoms include persistent fatigue, itchy skin, and dry eyes or mouth, while advanced stages can cause jaundice, abdominal discomfort, and swelling in the legs or abdomen^[15].

Biliary Dyskinesia

Biliary dyskinesia is a functional gallbladder disorder that affects the organ’s ability to move bile out into the bile ducts. This is not caused by a physical blockage like a gallstone, but rather by problems with how the gallbladder functions. When the gallbladder cannot efficiently move bile out, the backup causes swelling and can lead to infections, inflammation, and pain. Symptoms include upper abdominal pain that comes and goes, especially after eating, along with nausea and digestive problems^[10].

Bile Duct Strictures

A stricture is an abnormal narrowing of a bile duct that prevents bile from draining properly into the intestine. The bile backs up into the liver, causing obstructive jaundice. Strictures can be benign (non-cancerous) or malignant (cancerous). Benign strictures may occur when a bile duct is injured during surgery, from trauma to the abdomen, or from diseases like chronic pancreatitis. Malignant strictures are caused by tumors of the bile duct, gallbladder, or pancreas^[15].

Risk Factors

Several factors can increase your chances of developing biliary tract disorders. For gallstones, ethnic background plays a role—Native Americans have particularly high rates. Other risk factors include diabetes, rapid weight loss, morbid obesity, cirrhosis, being female, and conditions that cause infrequent gallbladder emptying, such as prolonged use of total parenteral nutrition (IV feeding)^[1].

The use of oral contraceptives and other medications containing estrogen also increases gallstone risk. Additionally, a high-calorie diet, obesity, clofibrate therapy (a cholesterol medication), gastrointestinal disorders involving major malabsorption of bile acids, and cystic fibrosis with pancreatic insufficiency are associated with the development of cholesterol gallstones^[4].

For biliary dyskinesia, having obesity and diabetes might be risk factors^[10].

Signs and Symptoms

The vast majority of people with gallstones have no symptoms at all. When symptoms do appear, they typically include pain in the right upper part of the abdomen, often accompanied by nausea and vomiting. The pain can be severe and may last several hours (biliary colic), or it may progress to cholecystitis with persistent pain and fever. On physical examination, there is pain when pressing on the right upper abdomen, known as Murphy’s sign^[1].

When gallstones block the common bile duct, people may experience pale-colored stools, dark urine, intermittent jaundice (yellowing of the skin and eyes), and itching. They may also have tenderness in the right upper abdomen but typically no fever^[5].

Ascending cholangitis presents with obstructive jaundice, right upper abdominal pain, fever, altered mental status, and low blood pressure. Other symptoms may include vomiting, lack of bowel movements (ileus), and abdominal swelling^[5].

Primary sclerosing cholangitis may cause fatigue, itching, abdominal pain, jaundice, and weight loss. Primary biliary cholangitis commonly presents with persistent fatigue, itchy skin, dry eyes or mouth, jaundice, and abdominal discomfort^[15].

People with biliary dyskinesia often experience upper abdominal pain that comes and goes, nausea (especially after eating fatty foods), abdominal bloating, and digestive problems^[10].

Diagnosis

Healthcare providers use several tests to diagnose biliary tract disorders. For suspected gallbladder problems, the first choice is usually an ultrasound of the right upper abdomen. In the presence of cholecystitis, the ultrasound typically shows gallstones, a thickened gallbladder wall, and fluid around the gallbladder. For patients with symptoms but a negative ultrasound, an endoscopic ultrasound may be helpful^[1].

A hydroxyiminodiacetic acid (HIDA) scan can confirm cholecystitis. In this test, a radioactive material is concentrated in the liver and released into bile. If the cystic duct is blocked, the material does not fill the gallbladder^[1].

Blood tests check liver function and can reveal signs of bile duct problems. Tests like alkaline phosphatase, bilirubin, and gamma-glutamyl transferase (GGT) help identify bile duct blockages or inflammation^[3].

For more detailed imaging of the bile ducts, thin-section computed tomography (CT) scans or magnetic resonance cholangiography (a type of MRI) may be used. Modern three-dimensional MR cholangiography is highly sensitive and specific for detecting stones in the bile ducts^[6].

Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that allows doctors to both see and treat problems in the bile ducts. A flexible tube with a camera is passed through the mouth into the digestive system to examine the bile ducts and, if needed, remove stones or place stents^[3][11].

For primary biliary cholangitis, blood tests check for anti-mitochondrial antibodies (AMAs). These substances almost never occur in people without the disease, making a positive AMA test a very reliable sign^[9].

Treatment Approaches

Surgical Treatment

The primary treatment for symptomatic gallstone disease is cholecystectomy—surgical removal of the gallbladder. Most cholecystectomies in the United States are done laparoscopically (through small incisions using a camera and specialized instruments). Most patients who undergo elective laparoscopic cholecystectomy go home within 24 hours. It is estimated that 95% of patients experience relief of pain after cholecystectomy^[1].

Prophylactic cholecystectomy for silent (asymptomatic) gallstones is not recommended. However, once a patient develops symptoms or complications related to gallstones, treatment to eliminate the gallstones is recommended because the likelihood of recurrent symptoms or complications is high^[8].

Common bile duct stones can be removed endoscopically before or after cholecystectomy, or surgically at the time of laparoscopic or open cholecystectomy^[1].

Medical Management

For gallstones, medical management is sometimes used as an alternative to surgery in selected patients. Methods include oral bile salt therapy (primarily ursodeoxycholic acid), contact dissolution, and extracorporeal shock-wave lithotripsy. However, these treatments may require several years to completely dissolve stones, and there is a 50% chance of stone recurrence over five years^[8].

For acute cholecystitis, patients should have nothing by mouth and receive intravenous fluid hydration with correction of any electrolyte imbalances. Broad-spectrum antibiotics are indicated when fever and elevated white blood cell count are prominent features. Common bacteria isolated include Escherichia coli, Enterococcus, Klebsiella, and Enterobacter^[8][12].

Primary biliary cholangitis is treated with medications such as ursodeoxycholic acid (UDCA) and obeticholic acid, which can help slow disease progression and improve liver function. Additional therapies may address symptoms like itching or vitamin deficiencies. In severe cases, a liver transplant may be necessary^[15].

For primary sclerosing cholangitis, treatment focuses on managing symptoms and complications. This may include medications for itching, antibiotics for infections, vitamin supplements, and procedures to relieve bile duct blockages. In severe cases, a liver transplant may be needed^[15].

Procedures for Blocked Bile Ducts

When tumors or strictures block the bile ducts, several palliative procedures can relieve symptoms and improve quality of life. Biliary bypass surgery creates a new pathway around the blocked area. Endoscopic stent placement involves inserting a thin, flexible tube to drain bile that has built up. Percutaneous transhepatic biliary drainage uses a thin needle inserted through the skin to place a stent in the liver that drains bile^[13].

Living With Biliary Tract Disorders

Diet and Nutrition

Biliary tract disorders and their treatments place extra demands on your body, making good nutrition very important. If you have a biliary tract disorder, limiting foods that require bile for digestion should be a priority. Following a Mediterranean-style diet typically works well, with its focus on plant-based foods and healthy fats^[18].

Build your eating plan around fruits and vegetables, whole-grain foods like oatmeal and brown rice, and unsaturated fats such as omega-3 fatty acids. These break down easier during digestion, putting less demand on your liver to produce bile. It’s best to limit or avoid foods high in saturated fats, sugar, or sodium. Alcohol can put extra stress on your liver and should be minimized^[18].

Reducing salt intake may help prevent swelling associated with biliary tract disorders. Choose lower-sodium processed foods, use fresh ingredients when possible, and cook more at home. Staying hydrated throughout the day is also important—it can help with symptoms like itchy skin, swelling, and fatigue^[19].

If you have had gallbladder surgery or have ongoing digestive problems, you may have difficulty digesting fatty foods and experience symptoms like diarrhea, gas, or bloating. Your healthcare team, including a registered dietitian, can help you maintain good nutrition and manage these side effects^[20][21].

Physical Activity

Regular exercise is important for people with biliary tract disorders. Activity may help counteract feelings of fatigue by increasing blood circulation and causing your body to release energy-building hormones. Exercise also helps maintain bone density—important because some biliary conditions increase the risk of osteoporosis^[18].

Aim for both aerobic exercise (like walking) and resistance (strength) training. Even when you feel tired, many people notice that exercise boosts energy levels and improves sleep quality. Finding an exercise buddy and scheduling planned times to be active can help you stay consistent^[19].

Managing Symptoms

The two most common symptoms people face with biliary disorders are fatigue and itching. Staying active and maintaining good hydration can help with fatigue. For itching, medications may be prescribed, and keeping your skin moisturized can provide some relief^[16].

If you develop complications like advanced liver disease, your healthcare team can help manage symptoms including pain, jaundice, loss of appetite, and nausea. Regular check-ups with a liver specialist are important to monitor disease progression and adjust treatments as needed^[21].

Emotional Well-being

Living with a chronic biliary tract disorder can be emotionally challenging. It may take time to come to terms with a diagnosis, especially for conditions you may never have heard of before. Some people feel relieved to finally have a reason for unexplained symptoms. Connecting with others who understand what you’re going through, whether through support groups or online communities, can be helpful. Your healthcare team can also provide resources for mental health support^[16].