Liver enzymes are proteins in your liver that speed up chemical reactions. If your liver is damaged, blood tests will show abnormally high levels of these enzymes circulating in your bloodstream.

Doctors can diagnose fatty liver disease, now called metabolic dysfunction-associated steatotic liver disease (MASLD), using blood tests that measure serum liver enzyme levels. Elevated enzyme levels ...

Persistently elevated liver enzymes may be caused by certain types of cancer, including liver, colon, breast, stomach, pancreas, and skin cancers. Liver enzymes are proteins produced by your liver.