Hepatitis A is an acute viral liver infection that, when it causes symptoms at all, brings fatigue, nausea, abdominal pain, jaundice, dark urine, and pale stools, usually starting 2 to 7 weeks after exposure CDC. Symptoms last weeks, then resolve completely. Hepatitis A never becomes chronic.
with the right treatment
testing, not symptoms, decides
| Item | Value |
|---|---|
| Curable? | yes — with the right treatment |
| Tested by | exam + lab |
| Often | no symptoms |
| If you may have it | get tested — testing, not symptoms, decides |
The symptoms of hepatitis A, explained
Not everyone infected with the hepatitis A virus (HAV) feels sick. Adults are more likely to develop symptoms than children, and young kids are often contagious while showing no signs at all, so the virus moves quietly through households and food. When symptoms do show up, they tend to come on together over a few days as the liver becomes inflamed.
Here's what each of the common symptoms actually is and why it happens:
- Fatigue — a deep, out-of-proportion tiredness that doesn't lift with sleep. It reflects the body fighting the infection and the liver struggling to do its normal metabolic work, and it's often the first thing people notice.
- Nausea and poor appetite — many people lose interest in food entirely, sometimes with vomiting. An inflamed liver disrupts digestion and the processing of fats, which dampens appetite.
- Abdominal pain — typically a dull ache or fullness in the upper-right belly, where the liver sits. As the liver swells, its outer capsule stretches, and that's what you feel.
- Jaundice — a yellowing of the skin and the whites of the eyes. It happens when the inflamed liver can't clear bilirubin (a yellow pigment from old red blood cells), so it builds up in the blood and tints the tissues.
- Dark urine — urine the color of tea or cola. The same excess bilirubin spills into the urine when the liver can't process it normally.
- Clay-colored or pale stools — bilirubin normally gives stool its brown color, so when it isn't reaching the gut, stools turn light or grayish.
Some people also run a low fever, feel achy, or notice their joints hurt. The mix and severity vary a lot from one person to the next, part of why symptoms alone don't pin hepatitis A down.
Where symptoms show up and the less obvious signs
Two signs get missed most often, and both are easy to spot once you know to look. Check the whites of your eyes in good light, and pay attention to urine and stool color. Jaundice can be subtle at first and is easier to see in the sclera (the white of the eye) than in the skin, especially for people with darker complexions. Dark urine often appears before the skin or eyes look yellow at all, so a sudden tea-colored stream paired with days of unexplained fatigue is worth taking seriously.
Itching can accompany jaundice when bile products build up in the skin, and some people simply feel a vague, flu-like malaise without ever turning yellow. Because young children are frequently infectious with no visible signs, an outwardly healthy child can pass the virus to adults in the home who then become noticeably ill.
How soon symptoms appear after exposure
When symptoms develop, they usually show up 2 to 7 weeks after exposure. That long, variable incubation period is a big reason hepatitis A spreads before anyone realizes they're infected — you can shed the virus and feel fine for weeks. If you know roughly when you were exposed and want to understand how soon a test can reliably catch an infection, see our guide on when to test after exposure.
Once symptoms begin, the illness is acute and self-limiting. Most people feel worst over the first couple of weeks and then steadily improve, with fatigue sometimes lingering the longest. Unlike hepatitis B and C, HAV does not set up a chronic infection — the immune system clears it, and recovery is complete. That defining feature separates hepatitis A from the other two.
What people commonly mistake hepatitis A for
Early hepatitis A is easy to write off as a stomach bug or a bad case of the flu, because nausea, fatigue, and aches are so generic. Once jaundice appears, the differential narrows to liver problems, but it still overlaps heavily with hepatitis B, hepatitis C, medication or alcohol-related liver injury, and gallbladder disease. These conditions can look nearly identical by sight, and several of them are frequently silent, so you can't reliably tell them apart by symptoms.
Overlapping symptoms are why you usually can't self-diagnose this. A test turns a guess into an answer.
How hepatitis A is confirmed
Hepatitis A is confirmed with a blood test that detects antibodies to the virus. If you have symptoms or a known exposure, a clinician can order it and sort hepatitis A from the other causes of jaundice — you can get tested at a clinic, health department, or doctor's office. Testing is generally a urine sample, a self-collected swab, or a quick exam depending on what's being ruled out, and it's free or low-cost at health departments, Planned Parenthood, and Title X clinics, with results usually back in a few days. For the full rundown of what each symptom can mean, see hepatitis a symptoms and how long they last.
There's no specific antiviral for hepatitis A. Care is supportive — rest, fluids, and good nutrition while the infection clears on its own. Avoiding alcohol and checking with a clinician before taking medications processed by the liver gives your liver the best chance to recover.
When to see a clinician
- You notice yellowing of your skin or the whites of your eyes, dark urine, or pale stools — these point to the liver and should be checked.
- You've had close contact with someone diagnosed with hepatitis A, or you ate at a place tied to an outbreak.
- You have persistent nausea, vomiting, or fatigue that's keeping you from eating or drinking normally. Dehydration is the main reason hepatitis A turns serious.
- You feel confused, extremely drowsy, or develop easy bruising or bleeding, which can signal the liver is in trouble — seek care promptly.