Your liver keeps working long after damage begins, which is why liver problems so often slip by unnoticed. About 4.5 million U.S. adults have been diagnosed with a liver disease, NIH News in Health reported in April 2025, and many more likely have one without knowing it.
Early liver disease is often silent. "But there may be no noticeable signs of disease until the liver has been severely damaged. And by then, it can be hard to treat," said Dr. Arun Sanyal, a physician and liver expert at Virginia Commonwealth University, quoted by NIH.
Fatty liver disease is now unusually common. Roughly 1 in 3 U.S. adults has some form of steatotic liver disease, most often linked to obesity or type 2 diabetes.
The signs worth taking seriously
Mayo Clinic's patient guide lists several possible symptoms of liver disease. The eight below are the ones most people should recognize.
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1. Jaundice. A yellow tint to the skin or the whites of the eyes signals a buildup of bilirubin, a pigment the liver normally clears from the blood.
2. Belly swelling or pain. Advanced liver disease can cause fluid to collect in the abdomen, a condition called ascites, per Cleveland Clinic.
3. Dark urine. When the liver cannot process bilirubin properly, more of it spills into the urine and darkens its color.
4. Pale or clay-colored stool. Stool gets its brown color from bile. When bile flow is blocked, stool loses that color.
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5. Persistent fatigue. Constant tiredness is among the symptoms Mayo Clinic lists on its liver disease patient page.
6. Itchy skin. Persistent itching without a visible rash, called pruritus, is a recognized later-stage sign of liver disease per Cleveland Clinic.
7. Nausea or loss of appetite. A struggling liver disrupts digestion, leaving many people queasy or off their food. Both symptoms are on Mayo Clinic's list.
8. Bruising easily. The liver produces clotting factors, so a damaged liver can leave people bruising from minor bumps.
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When to see a doctor
Mayo Clinic advises making an appointment with a healthcare professional for any lasting symptom that worries you, and seeking help right away for belly pain severe enough that you cannot stay still. Cleveland Clinic gives similar guidance for jaundice, ongoing fatigue, and swelling in the belly or legs.
Even without symptoms, it is worth asking about your liver at a routine physical. "Be direct. Even if you have no symptoms, tell your doctor: I want my liver checked out," Sanyal told NIH. Many liver problems can be picked up on standard blood tests.
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