AI Summary In the U.S., 100,000 to 200,000 people have autoimmune hepatitis, and 70% to 80% of them are female.
Medically reviewed.
In an autoimmune disease, your immune system attacks healthy tissue by mistake. When the liver or its bile ducts are the target, the result is autoimmune liver disease, such as autoimmune hepatitis. Many people have no symptoms at first. Without treatment, ongoing inflammation can cause scarring (cirrhosis), liver failure, or liver cancer. Treatment works best when it starts early, and other autoimmune diseases often appear alongside liver disease.
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About the Connection
Normally, your immune system tells foreign invaders, like bacteria and viruses, apart from your own cells. In an autoimmune disease, the body makes proteins called auto-antibodies that attack healthy cells. The attack can affect the whole body or specific organs. More than 80 autoimmune disorders exist, and they tend to be chronic rather than fatal.
Autoimmune liver disease happens when the immune system targets the liver. The best-known form is autoimmune hepatitis, also called lupoid hepatitis. Immune cells mistake normal liver cells for harmful invaders and attack them. If the inflammation persists, it gradually damages liver cells.
Autoimmune diseases often cluster. About half of people with type 1 (classic) autoimmune hepatitis also have another autoimmune disorder, such as thyroiditis, rheumatoid arthritis, or ulcerative colitis.
Autoimmune hepatitis often causes no symptoms at first. That is why testing matters if you have an autoimmune disease and abnormal liver results, or new symptoms.
Know Your Risk
Autoimmune liver disease can be silent, so knowing your risk factors helps you and your doctor catch it early.
Types of Autoimmune Liver Disease
Several autoimmune diseases can affect the liver or bile ducts. Each has its own pattern.
Autoimmune liver disease is often silent at first, and other autoimmune diseases frequently come with it. Tell your care team about every autoimmune condition you have, and ask whether your liver should be checked.
Finding It and Treating It
No single test shows which autoimmune disease you have, so your doctor will order several. A blood test for antibodies, such as the antinuclear antibody (ANA) test, is usually first. Doctors also check liver enzymes and immune protein levels, and they rule out other causes of liver disease, such as viral hepatitis. A liver biopsy can show the degree and type of liver damage. Ultrasound or MRI can look at the liver and bile ducts.
For autoimmune hepatitis, treatment aims to slow or stop the immune attack. Doctors use medicines that lower immune activity, often a corticosteroid such as prednisone, sometimes with azathioprine so the steroid dose can stay lower. These medicines can cause side effects, especially over the long term, so your doctor will monitor you closely. Some people reach remission, but the disease can return if medicine stops. For PBC, no cure exists, but medicines can slow the disease and help prevent complications. A liver transplant is an option when medicines fail or cirrhosis or liver failure develops.
Researchers do not know exactly what triggers autoimmune liver disease. They point to a mix of factors that can overlap.
You cannot change your genes or sex, but you can tell your doctor about your family history, other autoimmune conditions, and medicines. That helps them watch your liver more closely.
Taking Action
Autoimmune hepatitis treatment can last a long time. Doctors may continue corticosteroids for a minimum of 18 months, and sometimes for life. Take your medicines as prescribed, and do not stop them without talking to your doctor, because the disease can return.
Corticosteroids can cause weight gain, high blood sugar, bone thinning, high blood pressure, cataracts, glaucoma, and a higher risk of infection. Azathioprine can affect the bone marrow and liver. Regular checkups and blood tests help your team catch these problems early.
Primary biliary cholangitis can cause itching, and medicines are available to ease it. PBC also raises the risk of weak bones, so ask your doctor about bone health, calcium, and vitamin D. Primary sclerosing cholangitis is linked with ulcerative colitis, so ask whether you need a colonoscopy.
Many people with autoimmune liver disease have other autoimmune conditions. Keep each doctor informed about your diagnoses and medicines, and ask about seeing a liver specialist (hepatologist) who can coordinate your care.
Diet and Lifestyle
No special diet treats autoimmune liver disease, but healthy habits support your liver and help you handle treatment. A healthy, balanced diet, no alcohol unless your doctor says otherwise, and a healthy body weight are the foundation.
Steroids can cause weight gain, so small, consistent changes to what and how much you eat often matter more than any single food. Talk with your care team before you take any supplement, and keep your follow-up appointments so they can track your liver tests.
Habits That Support Your Liver
Common Questions
Yes. In an autoimmune disease, your immune system makes proteins called auto-antibodies that attack healthy cells by mistake. The attack can target your whole body or specific organs. When it targets the liver, the result is autoimmune hepatitis, which inflames and damages liver cells. Primary biliary cholangitis (PBC) slowly damages the bile ducts in the liver. Primary sclerosing cholangitis (PSC) inflames, scars, and narrows the bile ducts, and experts link some cases to an underlying autoimmune disorder.
Often not, especially early on. Autoimmune hepatitis frequently causes no symptoms, and when symptoms appear they range from mild to severe and can start slowly or suddenly. They include fatigue, joint pain, jaundice (yellow skin and whites of the eyes), itching, dark urine, light-colored stools, nausea, loss of appetite, and abdominal discomfort. PBC and early PSC can also stay silent for years, or cause only fatigue, itchy skin, or dry eyes and mouth. Because of this, ask about a liver check if you have an autoimmune disease.
Doctors use several tests, because no single test shows which autoimmune disease you have. An antibody blood test, such as the antinuclear antibody (ANA) test, is usually first. Your doctor will also check liver enzymes and rule out other causes of liver disease, such as viral hepatitis. A liver biopsy can show the degree and type of liver damage. For PBC, doctors may also check cholesterol, which is often very high, and use ultrasound or MRI to look at the bile ducts. For PSC, a blood test for alkaline phosphatase and imaging of the bile ducts help confirm the diagnosis.
Treatment aims to slow or stop the immune attack on your liver. For autoimmune hepatitis, doctors use medicines that lower immune activity. They often start with a high dose of a corticosteroid such as prednisone, then move to a low dose. Azathioprine is sometimes added so the steroid dose can stay smaller and cause fewer side effects. PBC has no cure, but medicines can slow it and may help prevent complications. For PSC, doctors treat symptoms such as itching, treat infections with antibiotics, and may use a procedure to widen narrowed bile ducts. A liver transplant is an option if medicines fail or cirrhosis or liver failure develops.
Not always, but some people do. Doctors may continue corticosteroids for a minimum of 18 months, and sometimes for life. You may go into remission several years after treatment starts, but autoimmune hepatitis can return if you stop your medicine. Long-term use can cause side effects, including weight gain, diabetes, bone thinning, high blood pressure, cataracts, and glaucoma. Never stop or change your medicine without talking to your doctor. Regular checkups help your team balance the benefits against the side effects.
Yes, if it goes untreated or medicine does not control it. Ongoing inflammation can cause permanent scarring of the liver (cirrhosis), and advanced scarring can lead to liver failure or liver cancer. In PSC, blocked bile ducts can lead to infections called cholangitis, which can also scar the liver. A liver transplant may be needed when medicines do not stop the disease or when cirrhosis or liver failure develops. Starting treatment early gives you the best chance of avoiding these problems.
Women are affected more often by most of these diseases. Across autoimmune diseases, about 6.4% of women are affected compared with 2.7% of men, and the most common age of onset is 40 to 50. In the U.S., 70% to 80% of people with autoimmune hepatitis are female. PBC affects more women than men and usually appears between ages 30 and 60. PSC is the exception: about 70% of cases occur in men, and the average age at diagnosis is 40. A family history, another autoimmune disease, or inflammatory bowel disease (common in PSC) also raises your risk.
Medical disclaimer: LiverDirectory provides educational information and a directory of providers. It does not provide medical advice, diagnosis, or treatment. Always consult a licensed physician regarding any medical condition.
