Primary biliary cholangitis
Primary biliary cholangitis
Also known as:PBC; primary biliary cirrhosis (older name); China Second Rare Disease Catalog item 63
Primary biliary cholangitis is a chronic autoimmune cholestatic liver disease in which small intrahepatic bile ducts are gradually damaged, causing itch, fatigue, cholestasis, and fibrosis risk.
Start Here
A quick guide to the next step: which department to start with, what to prepare, and what to ask.
Persistent ALP/GGT elevation, positive AMA, long-term itch, or unexplained fatigue should be reviewed by hepatology or gastroenterology.
PBC is not alcohol- or virus-related liver disease. Immune injury to small bile ducts causes bile to build up and can progress to fibrosis, cirrhosis, and portal hypertension.
Ursodeoxycholic acid is foundational treatment, and early biochemical response predicts better outcomes. Nonresponse, intolerance, itch, and advanced disease need specialist adjustment.
PBC has genetic susceptibility and environmental triggers but is not a single-gene inherited disorder. First-degree relatives have slightly higher risk, but screening is individualized.
Early PBC can be silent or labeled fatty liver, allergy, skin itch, or chronic fatigue unless ALP, GGT, AMA, and biliary obstruction are evaluated.
This page helps patients and families organize care leads. It does not replace a clinician’s diagnosis or treatment plan. For testing, medication, referrals, emergency care, and support applications, follow qualified clinicians, medical institutions, support organizations, and official sources.
Diagnosis Path
Organized around the practical patient journey: identify clues, avoid common delays, then prepare for care.
When to Suspect It
- Alkaline phosphatase and GGT remain elevated, especially with positive antimitochondrial antibody.
- Long-term itching, fatigue, dry eyes or mouth, right upper abdominal discomfort, or high cholesterol.
- Coexisting Sjogren syndrome, thyroid disease, systemic sclerosis, or other autoimmune disease.
- Jaundice, ascites, leg swelling, vomiting blood, black stools, or confusion suggesting advanced complications.
Common Wrong Turns
- Observing as fatty liver or gallbladder disease without recognizing the cholestatic enzyme pattern.
- Treating itch only in dermatology without liver tests and AMA.
- Using nonspecific liver supplements instead of adequate UDCA and 6- to 12-month biochemical response assessment.
Departments to Start With
- Hepatology
- Gastroenterology
- Rheumatology when autoimmune disease coexists
- Liver transplant center for advanced disease
Before the Visit
- Bring serial liver tests: ALP, GGT, ALT/AST, bilirubin, albumin, INR, and platelets.
- Bring AMA, ANA, IgM, viral hepatitis, and autoimmune hepatitis antibody results.
- Bring ultrasound, MRCP, or other imaging to exclude obstruction and primary sclerosing cholangitis.
- Record itch, fatigue, dry eyes or mouth, bone pain, fractures, pregnancy history, and medicines or supplements.
Tests to Ask About
- AMA or PBC-specific ANA, IgM, and cholestatic liver enzyme assessment.
- Transient elastography or noninvasive fibrosis testing, and whether liver biopsy is needed.
- How UDCA response will be judged after 6 to 12 months and whether second-line therapy is needed.
- Bone density, fat-soluble vitamins, thyroid disease, Sjogren syndrome, and cirrhosis complication screening.
Questions for the Doctor
- Does my pattern meet PBC criteria, and do we need to exclude autoimmune hepatitis overlap or obstruction?
- Is my UDCA dose adequate for weight, and when will ALP, bilirubin, and risk scores be reviewed?
- How can itching and fatigue be managed, and do I need second-line therapy or a trial?
- Do I have cirrhosis or portal hypertension, and when should liver transplant evaluation start?
Basic Information
Medical Notes
More complete medical explanations are kept here for discussion with clinicians.
Symptoms
PBC may be asymptomatic early and found through elevated ALP or GGT. Common symptoms are fatigue and itchy skin, often worse at night and disruptive to sleep and mood. Dry eyes, dry mouth, right upper abdominal discomfort, joint pain, and high cholesterol can occur.
With progression, people may develop skin darkening, jaundice, fatty stools, osteoporosis, ascites, leg swelling, variceal bleeding, and hepatic encephalopathy.
Diagnosis
Typical diagnosis is based on cholestatic liver enzyme elevation, AMA or PBC-specific autoantibodies, and exclusion of biliary obstruction. Ultrasound or MRCP can help rule out stones, tumors, strictures, and primary sclerosing cholangitis.
Liver biopsy is not required for everyone but is useful when AMA is negative, autoimmune hepatitis overlap is suspected, diagnosis is unclear, or inflammation and fibrosis need staging. Risk assessment uses ALP, bilirubin, albumin, platelets, liver stiffness, and treatment response.
Treatment
Ursodeoxycholic acid is foundational therapy and should be taken long term at an appropriate weight-based dose. ALP and bilirubin response after 6 to 12 months helps estimate long-term risk. Nonspecific liver supplements should not replace UDCA.
If UDCA response is inadequate or the medicine is not tolerated, hepatologists may consider obeticholic acid, fibrates, or other second-line options depending on contraindications. Itch can be treated with bile acid sequestrants, rifampin, opioid antagonists, or other approaches. Advanced disease, refractory itch, or decompensation may require liver transplant evaluation.
Long-term Care
Long-term follow-up includes liver tests, bilirubin, albumin, INR, platelets, liver stiffness, ultrasound, and cirrhosis complication screening. People with cirrhosis need surveillance for liver cancer and varices.
Bone loss, fat-soluble vitamin deficiency, thyroid disease, Sjogren syndrome, fatigue, itch, and mental health should also be addressed. Avoid excess alcohol, receive appropriate hepatitis vaccination, and review liver toxicity before new medicines.
Fertility and Family
PBC is not a single-gene inherited disease. First-degree relatives with itching, fatigue, or abnormal liver enzymes can ask about liver tests and AMA. Pregnancy planning should include hepatology and obstetrics review of disease stability, medicines, and cholestasis monitoring.
When to Seek Urgent Care
Urgent care is needed for vomiting blood, black stools, rapidly increasing ascites, worsening jaundice, fever with abdominal pain, confusion, severe sleepiness, low urine output, or uncontrolled itch affecting eating and sleep.
Prognosis
Early diagnosis and good UDCA response predict better outcomes. Rising bilirubin, persistently high ALP, cirrhosis, or decompensation indicate higher risk.