Hepatitis
Hepatitis is an inflammation of the liver that can be caused by viruses, alcohol, toxins, or autoimmune conditions, potentially leading to long-term liver damage.
What is hepatitis?
Hepatitis is inflammation of the liver, which is swelling that occurs when body tissues are injured or infected. This can damage the liver and affect its function. It can be an acute (short-term) or chronic (long-term) infection.
What causes hepatitis?
- Viral hepatitis: The most common type, caused by hepatitis viruses A, B, C, D, and E.
- Alcoholic hepatitis: Caused by heavy alcohol use.
- Toxic hepatitis: Caused by poisons, chemicals, medicines, or supplements.
- Autoimmune hepatitis: A chronic type where the immune system attacks the liver.
How is viral hepatitis spread?
Hepatitis A and E typically spread through contact with food or water contaminated with an infected person's stool; hepatitis E can also be contracted by eating undercooked pork, deer, or shellfish. Hepatitis B, C, and D spread through contact with infected blood, and in the case of B and D, other body fluids, such as through sharing needles or unprotected sex.
What are the symptoms of hepatitis?
Some people have no symptoms. When they do occur, they may include:
- Fever and fatigue
- Loss of appetite, nausea, and/or vomiting
- Abdominal pain
- Dark urine and clay-colored bowel movements
- Joint pain
- Jaundice (yellowing of the skin and eyes)
What other problems can hepatitis cause?
Chronic hepatitis can lead to complications such as cirrhosis (scarring of the liver), liver failure, and liver cancer. Early diagnosis is key to preventing these outcomes.
How is hepatitis diagnosed?
Providers use medical history, physical exams, blood tests, imaging tests (ultrasound, CT, or MRI), and potentially a liver biopsy to confirm the diagnosis and assess damage.
What are the treatments for hepatitis?
Treatment depends on the type and duration of the infection. Acute viral hepatitis often resolves with rest and fluids. Chronic types may require specific medications. Alcoholic hepatitis requires cessation of drinking. In cases of liver failure or cancer, a liver transplant may be necessary.
Can hepatitis be prevented?
Prevention depends on the type: vaccines are available for hepatitis A and B, and limiting alcohol can prevent alcoholic hepatitis. Autoimmune hepatitis cannot be prevented.