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8. High ALT

High ALT indicates liver damage, but this damage may occur from many conditions, and some are more serious than others.

Fatty liver disease, cirrhosis, hepatitis, liver cancer, increased iron levels, mononucleosis, and medication toxicity can all cause elevated ALT. Less than five percent of people with elevated ALT results have a severe liver condition; these other causes are much more common.

graphic illustration of liver transurfer / Getty Images

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