It’s normal to have a certain amount of fat in your liver, because processing dietary and blood fats is a big part of what the liver does. But in certain situations, fat can start to build up in the liver. If that goes on unchecked, it can cause inflammation, liver damage, and even liver cancer.
In its early stages, a fatty liver doesn’t really cause any symptoms. It’s most likely to be detected through a physical exam, during which your doctor might be able to feel that your liver is enlarged. Blood tests, imaging, and/or biopsies can confirm the diagnosis.