The following are a few common reasons that may damage the liver and lead to inflammatory activity in the liver. I. Drinking large amounts of alcohol, the ethanol in alcohol is converted to acetaldehyde in the liver, acetaldehyde is toxic to the liver and can easily lead to liver damage if consumed in large amounts. Second, oral administration of certain drugs that damage the liver such as erythromycin, ciprofloxacin and other antibiotics, oral anti-tuberculosis drugs, and certain lipid-lowering drugs such as statins, taking drugs for a long time may lead to liver damage. Three, often stay up late, the liver does not get rest for a long time, but also prone to hepatitis. Fourth, strenuous exercise, such as running marathons or strenuous aerobic exercise, more than 1 hour a day, 4-5 times / week, prolonged exercise is likely to make the liver in a relatively ischemic, hypoxic state, it is also easy to induce liver inflammation.