Before we begin: Hepatitis A virus can infect people who accidentally ingest fecal matter.
This tutorial walks you through everything you need to know about hepatitis a. We explain it in plain language, step by step, so whether you are a student, a patient, or simply curious, you will come away with a solid understanding.
We cover what it is, why it matters, how it is diagnosed, and what you can do about it. Key facts are called out along the way.
What is hepatitis? Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. It can damage your liver. This swelling and damage can affect how well your liver functions.
What is hepatitis A? Hepatitis A is a type of viral hepatitis. It causes an acute, or short-term, infection. This means that people usually get better without treatment after a few weeks.
Thanks to a vaccine, hepatitis A is not very common in the United States.
What causes hepatitis A? Hepatitis A is caused by the hepatitis A virus. The virus spreads through contact with an infected person’s stool. This can happen if you:
Eat food made by someone who has the virus and did not properly wash their hands after using the bathroom
Drink contaminated water or eat foods that were rinsed with contaminated water
Have close personal contact with someone who has hepatitis A. This could be through certain types of sex (like oral-anal sex), taking care of someone who is ill, or using illegal drugs with others.
Who is at risk for hepatitis A? Although anyone can get hepatitis A, you are at higher risk if you:
Travel to developing countries
Have sex with someone who has hepatitis A
Are a man who has sex with men
Use illegal drugs
Are experiencing homelessness
Live with or care for someone who has hepatitis A
Live with or care for a child recently adopted from a country where hepatitis A is common
What are the symptoms of hepatitis A? Not everyone with hepatitis A has symptoms. Adults are more likely to have symptoms than children. If you do have symptoms, they usually start 2 to 7 weeks after infection. They can include:
Dark yellow urine
Diarrhea
Fatigue
Fever
Gray- or clay-colored stools
Joint pain
Loss of appetite
Nausea and/or vomiting
Abdominal pain
Yellowish eyes and skin, called jaundice
The symptoms usually last less than 2 months, although some people can be ill for as long as 6 months.
You are at a higher risk of getting a more severe infection from hepatitis A if you also have HIV, hepatitis B, or hepatitis C.
What other problems can hepatitis A cause? In rare cases, hepatitis A may lead to liver failure. This is more common in adults over age 50 and in people who have another liver.
How is hepatitis A diagnosed? To diagnose hepatitis A, your health care provider may use many tools:
A medical history, which includes asking about your symptoms
A physical exam
Blood tests, including tests for viral hepatitis
What are the treatments for hepatitis A? There is no specific treatment for hepatitis A. The best way to recover is to rest, drink plenty of liquids, and eat healthy foods. Your provider may also suggest medicines to help relieve symptoms. In more severe cases, you may need care in a hospital.
Can hepatitis A be prevented? The best way to prevent hepatitis A is to get the hepatitis A vaccine. It is also important to have good hygiene, especially washing your hands thoroughly after you go to the bathroom.
National Institute of Diabetes and Digestive and Kidney Diseases
Also known as: HAV.
Categories: Digestive System, Infections.
Source: National Institutes of Health — National Institute of Diabetes and Digestive and Kidney Diseases.
Key Takeaways
Understanding hepatitis a is an important part of taking charge of your health. Here is what to remember:
- Know the signs — Recognizing early symptoms can lead to earlier diagnosis and better outcomes.
- Talk to your provider — If you have concerns or a family history of this condition, bring it up at your next checkup.
- Stay informed — Medical knowledge evolves. Keep learning and asking questions.
- You are not alone — Many people deal with this condition. Support groups and educational resources can help.