

Primary Biliary Cholangitis (PBC) is a chronic autoimmune disease that affects the small bile ducts within the liver. Over time, it leads to the gradual destruction of these ducts, causing bile to build up and damage liver tissue. This condition is most common in women over the age of 40 and may initially present with no noticeable symptoms. As it progresses, it can cause persistent fatigue, itchy skin, and yellowing of the eyes and skin (jaundice).In this article on Dalili Medical, we reveal the main causes of PBC, the early warning signs you shouldn't ignore, the latest diagnostic methods, and the most effective treatments currently available. We also share practical tips to help you live better with the disease and improve your daily quality of life.
Primary Sclerosing Cholangitis (PSC) progresses slowly, and many patients live for many years. Symptoms often develop gradually over 10 to 15 years. With careful medical follow-up, the progression of the disease can be slowed, and quality of life can be improved.
❌ No, PSC is not contagious. It doesn’t spread through food, blood, or physical contact, as it results from an autoimmune dysfunction, not an infection.
❌ There is no proven direct link between alcohol consumption and the development of PSC. However, it is always best to avoid alcohol to protect the liver and reduce complications.
❌ There is no definitive cure for PSC at present. However, symptoms can be managed, and liver damage can be slowed with medications, regular follow-up, and nutritional support.
Feature | PSC | PBC |
---|---|---|
Area Affected | Affects bile ducts inside and outside the liver | Affects small bile ducts within the liver only |
Nature | Inflammation and progressive scarring | Chronic autoimmune disorder causing damage to ducts |
Associations | Commonly linked to ulcerative colitis | Often linked to other autoimmune diseases like thyroid |
✅ Yes, in advanced stages, PSC can increase the risk of bile duct cancer (cholangiocarcinoma). Regular medical monitoring and screening are essential for early detection.
✅ Yes, pregnancy is possible with PSC. However, it requires careful planning and close monitoring by a medical team, especially to manage medications and ensure the health of both mother and baby.
✅ Yes, around 70% of PSC patients also have ulcerative colitis, suggesting a shared autoimmune mechanism between the two conditions.
✅ Absolutely. Light to moderate activities like walking, yoga, or swimming can boost energy and reduce fatigue. Always consult your doctor before starting a new exercise program.
PSC is not directly inherited, but having a family history of autoimmune diseases may increase the risk.
A healthy, anti-inflammatory diet is recommended, including:
Reducing saturated and fried fats
Eating plenty of fresh fruits and vegetables
Focusing on plant-based proteins and fish
Drinking enough water
Avoiding alcohol, fast food, and processed foods
⏳ Life expectancy varies depending on disease severity and early diagnosis.
Some patients live for decades without major interventions.
Others may experience progression and require liver transplantation in advanced stages.
PSC progresses slowly, and many patients live for years. Symptoms often appear gradually over 10–15 years. With careful medical follow-up, the disease’s progression can be slowed and quality of life improved.
❌ No, PSC is not contagious. It doesn’t spread through food, blood, or contact. It is an autoimmune condition—not caused by an infection.
❌ There is no proven direct link between alcohol consumption and PSC, but it is always recommended to avoid alcohol to protect the liver and reduce complications.
❌ There is no complete cure yet. However, symptoms can be managed, and liver damage can be slowed with medications, regular monitoring, and dietary support.
Feature | PSC | PBC |
---|---|---|
Affected Area | Affects both intra- and extrahepatic bile ducts | Affects only the small intrahepatic bile ducts |
Disease Type | Progressive inflammation and scarring | Autoimmune damage to small bile ducts |
Associated Conditions | Often linked to ulcerative colitis | Often linked to autoimmune thyroid diseases |
✅ Yes. In advanced cases, PSC increases the risk of cholangiocarcinoma (bile duct cancer). Regular check-ups and imaging are essential for early detection.
✅ Yes. Pregnancy is possible but requires careful planning and monitoring by a medical team to adjust medications and protect both mother and baby.
✅ Yes. Around 70% of people with PSC also have ulcerative colitis, indicating a possible shared autoimmune mechanism.
✅ Absolutely. Light-to-moderate exercise (e.g., walking, yoga, swimming) can help boost energy and reduce fatigue. Always consult a doctor before starting an exercise routine.
PSC is not directly inherited, but a family history of autoimmune diseases may increase the risk.
✅ Yes. Itching (pruritus) is a common symptom caused by bile salt buildup in the skin due to bile duct blockages.
Possibly. But:
A doctor must be consulted first
Some medications require a fixed schedule
Fasting may cause dehydration or malnutrition in advanced cases
Yes, as the disease progresses, it can lead to:
Liver fibrosis
Cirrhosis
Decline in essential liver functions (protein synthesis, glucose regulation, detoxification)
✅ Tests include:
Liver function tests: ALT, AST, ALP, GGT
Autoimmune markers: p-ANCA
Magnetic Resonance Cholangiopancreatography (MRCP)
Liver biopsy (in selected cases) to confirm diagnosis or rule out other conditions
Yes. Jaundice is a common symptom due to bile duct narrowing or blockage preventing proper bile drainage.
✅ Yes. In some cases:
PSC is discovered incidentally during blood tests or imaging
Symptoms develop later as the condition advances, making early follow-up crucial
Yes. Living with a chronic illness like PSC can lead to:
Anxiety and depression
Chronic fatigue and reduced quality of life
Social isolation or loss of motivation
✅ Recommended:
Psychological and family support
Therapy with a mental health specialist
Light exercise and mindfulness to improve mood
Yes—but only under medical supervision. Common supplements include:
Vitamin D: to combat malabsorption and prevent bone loss
Vitamins A and K: especially if fat absorption is impaired
Calcium: to support bone health
❌ Supplements should never be taken randomly without medical evaluation.
✅ Yes. Since PSC affects bile ducts connected to the liver and gallbladder, it may cause:
Gallstones
Chronic gallbladder inflammation
Need for gallbladder removal in some cases
Liver transplant is a last-resort option in cases of:
Advanced liver failure
Severe fibrosis or cirrhosis
Unmanageable complications (e.g., bleeding, ascites)
Early-stage cholangiocarcinoma (in selected patients)
✅ Regular follow-up with a hepatologist helps determine the right timing.
A proper diet is essential to reduce inflammation and support liver health. Avoid:
Raw or undercooked shellfish
May carry harmful bacteria or viruses (e.g., Vibrio, hepatitis A) dangerous to the liver
Cook seafood thoroughly before eating
Saturated and trans fats
Found in butter, margarine, fried and fast foods
Worsen liver fat buildup and inflammation
Simple carbohydrates
White bread, sugar, pastries, sweets
Can spike blood sugar and worsen insulin resistance
Excessive salt
Increases fluid retention—especially risky for patients with ascites
Alcohol (all forms)
Completely forbidden—it accelerates liver damage
✅ Dietary Recommendation:
Follow a liver-friendly diet that is:
Low in fat and salt
Rich in fruits and vegetables
Includes lean protein (well-cooked chicken and fish)
Hydration is key—drink plenty of water
Avoid herbal supplements without doctor approval
Feature | Primary Biliary Cholangitis (PBC) | Primary Sclerosing Cholangitis (PSC) |
---|---|---|
Definition | Autoimmune disease affecting small intrahepatic bile ducts | Chronic inflammation and fibrosis of intra- and extrahepatic bile ducts |
Most Affected Gender | Women (90%) | Men (70%) |
Autoimmune Marker | AMA (Antimitochondrial Antibodies) | p-ANCA (non-specific) |
Common Associated Conditions | Sjögren’s, autoimmune thyroid disease | Ulcerative colitis, IBD |
Liver Function Tests | Elevated ALP and GGT | Elevated ALP and GGT |
Imaging | Usually normal in early stages | "Beading" appearance on cholangiography |
Liver Biopsy Findings | Damage in small bile ducts | Fibrosis around large bile ducts |
⚠️ Complications | Cirrhosis, osteoporosis | Cirrhosis, bile duct cancer (cholangiocarcinoma) |
Treatment | UDCA, sometimes immunosuppressants | No definitive cure; medical support and transplant |
Disease Progression | Slow progression over years | Chronic, sometimes rapid in advanced stages |
While the exact cause of PSC remains unknown, it is believed to result from a complex interplay among immune dysfunction, genetics, and environmental triggers. Key potential contributors include:
Autoimmune Dysfunction (Most Likely Cause)
The immune system mistakenly attacks the bile ducts, leading to chronic inflammation and progressive fibrosis, which obstructs bile flow and damages the liver.
Association with Inflammatory Bowel Disease (IBD)
About 70–80% of PSC patients also have ulcerative colitis or Crohn’s disease, indicating a strong link between intestinal immune dysregulation and PSC.
Genetic Predisposition
A family history of PSC or autoimmune diseases increases the risk. Certain genes like HLA‑B8 and DR3 are implicated, suggesting a hereditary component.
Environmental Factors
Hypothesized triggers include:
Bacterial or viral infections
Disruption of gut microbiota
Exposure to toxins or chemicals
However, none of these have been conclusively proven.
Gender and Hormonal Influence
PSC predominantly affects men, unlike PBC which is more common in women, suggesting possible hormonal or sex-related influences.
PSC manifests in several distinct forms, each with unique clinical and diagnostic features:
Classic PSC
Most common type
Affects both intrahepatic and extrahepatic bile ducts
Often associated with ulcerative colitis
Diagnosed via MRCP (Magnetic Resonance Cholangiopancreatography) or ERCP (Endoscopic Retrograde Cholangiopancreatography)
Characterized by multiple strictures and irregular duct dilations (beading pattern)
Small‑Duct PSC
Involves only the small bile ducts inside the liver
Imaging often appears normal; diagnosis requires liver biopsy
Typically has milder course, lower risk of bile duct cancer, and better long-term prognosis
PSC–AIH Overlap Syndrome
Features combined PSC and autoimmune hepatitis (AIH)
Patients often test positive for ANA and ASMA
Respond well to immunosuppressive therapy (e.g., corticosteroids)
Requires a dual treatment approach
IBD‐Associated PSC
Most common subtype among PSC patients with inflammatory bowel disease
PSC may precede, coincide with, or follow IBD diagnosis
Colonic inflammation often less active, but PSC can silently progress
PSC typically progresses over several stages, from mild inflammation to liver failure:
Stage 1: Bile Duct Inflammation
Early inflammatory changes in duct walls
Usually asymptomatic
Mild elevation in ALP and GGT found on blood tests
Stage 2: Biliary Strictures
Partial fibrosis and duct narrowing
Bile stasis develops
Symptoms like itching, fatigue, and more pronounced enzyme elevations
Stage 3: Bridging Fibrosis
Extensive liver fibrosis
Signs of liver dysfunction appear: hepatosplenomegaly, ascites, and coagulation changes
Stage 4: Cirrhosis
Liver architecture deteriorates into fibrotic tissue
Complications include portal hypertension, esophageal varices with bleeding, severe ascites, and increased risk of cholangiocarcinoma
End‑Stage Liver Disease
Complete loss of liver function
Liver transplantation becomes essential
Early (often subtle):
Chronic unexplained fatigue
Persistent itching (pruritus)
Mild liver enzyme abnormalities (often incidentally discovered)
Advanced:
Jaundice (yellowing of skin and eyes)
Upper right abdominal pain
Dark urine, pale or clay‑colored stools
Unexplained weight loss, appetite loss
Recurrent fevers (especially during cholangitis)
Severe/Complicated:
Ascites (abdominal fluid buildup)
Enlarged liver and spleen
Gastrointestinal bleeding from varices
Hepatic encephalopathy (confusion, memory issues, impaired cognition)
Associated IBD symptoms:
Chronic diarrhea
Blood in stools
Abdominal cramps
As PSC advances, the potential complications include:
Cirrhosis from chronic inflammation and fibrosis
Liver failure, often requiring transplantation
Cholangiocarcinoma (bile duct cancer) in approximately 10–15% of patients
Hepatocellular carcinoma—less common, but risk increases with cirrhosis
Recurrent cholangitis causing fever, pain, and exhaustion
Ascites due to portal hypertension or liver failure
Esophageal varices and gastrointestinal bleeding
Hepatic encephalopathy due to toxin accumulation in the brain
Fat‑soluble vitamin malabsorption (A, D, E, K) leading to bone fragility, bleeding tendencies, and immune dysfunction
Coexisting autoimmune diseases, frequently ulcerative colitis, Crohn’s disease, or rheumatologic disorders
Diagnosis involves combining clinical assessment, lab tests, imaging, and sometimes biopsy:
History & Physical Exam: Evaluate symptoms like itching, fatigue, jaundice, history of IBD or autoimmune conditions, and signs like hepatosplenomegaly
Blood Tests:
Liver function (ALP, GGT) elevated
Aminotransferases (ALT, AST) elevated to a lesser degree
Bilirubin elevated in later stages
Autoimmune markers: ANA, p-ANCA, SMA, and IgG4 level (to exclude IgG4‐related cholangitis)
Imaging:
MRCP is the most accurate for detecting bile duct changes
ERCP reserved for complex or therapeutic purposes due to higher risks
Ultrasound may show liver enlargement or bile duct obstruction
Liver Biopsy: Not always necessary—used when imaging is inconclusive (e.g., small‐duct PSC), or to assess fibrosis
Diagnostic Criteria:
Persistent elevation of ALP
Characteristic bile duct changes on MRCP or ERCP
Exclusion of other cholangiopathies (such as PBC, AIH, or IgG4‐associated disease)
Antibiotics, tailored to the specific bacteria involved
Preventive strategies to reduce the risk of recurrence, if necessary
Vitamin D and calcium supplements
Bone-strengthening medications such as bisphosphonates in certain cases
Liver transplant is the only definitive treatment in the following situations:
Severe deterioration of liver function
Recurrent episodes of acute cholangitis
Development of cholangiocarcinoma (bile duct cancer)
Note: Outcomes after transplantation are generally excellent, though PSC may recur in the transplanted liver in 10–20% of cases.
Monthly or periodic blood tests to monitor liver function
MRCP or ERCP imaging regularly, depending on the case
Routine colonoscopies if the patient also has ulcerative colitis
There is no specific diet for PSC, but a balanced diet rich in proteins and vitamins is recommended
Alcohol should be completely avoided
Vaccination is essential against:
Hepatitis A and B
Influenza
Pneumococcus
Although Primary Sclerosing Cholangitis (PSC) is a rare disease with no clearly defined cause, making complete prevention impossible, the following strategies may help:
Reduce the risk of complications
Preserve liver function
Improve quality of life
Over 70% of PSC patients also suffer from ulcerative colitis or other inflammatory bowel diseases (IBD)
Ongoing follow-up with a gastroenterologist is crucial
Colonoscopy every 1–2 years is recommended for early detection of colon cancer
To protect the liver from viral infections:
Vaccine | Purpose |
---|---|
Hepatitis A | To prevent viral hepatitis A |
Hepatitis B | To protect an already compromised liver |
Influenza & Pneumococcus | To prevent common infections that may strain the liver |
Alcohol accelerates liver damage and increases fibrosis risk
Avoid herbs or medications that may harm the liver without medical supervision
Eat balanced meals rich in fruits and vegetables
Limit animal fats and processed foods
Ensure proper absorption of fat-soluble vitamins (A, D, E, K), especially in case of deficiencies
Engage in regular moderate exercise to boost immunity and circulation
Avoid a sedentary lifestyle that can worsen fatigue and muscle weakness
Track liver enzymes (ALP, GGT), bilirubin, albumin, and INR
Perform MRCP scans as directed by your doctor
In rare cases, PSC may follow a genetic pattern. Genetic counseling may help with:
Assessing the risk of inheritance
Taking early preventive measures
There is no guaranteed method to prevent PSC. However, early detection and effective management are key to reducing symptoms and slowing disease progression.