There are many reasons that can cause abnormal liver function. Firstly, the most common cause is liver disease, such as chronic hepatitis B, chronic hepatitis C, liver cirrhosis, and liver cancer, which can also lead to elevated transaminase levels. The second cause is excessive alcohol consumption, which can also result in abnormal liver function. The third is excessive fatigue, and the fourth is the use of certain drugs that can damage the liver, which can also lead to abnormalities in liver function. Thus, there are many factors that can cause abnormal liver function, and it’s not necessarily liver cancer if liver function is abnormal. If abnormal liver function and elevated transaminase levels are detected, it is important to first identify the cause and then proceed with treatment, rather than overly worrying.