Fatty liver generally does not cause significant elevation of carcinoembryonic antigen, which is first found in the serum of patients with colon cancer and is generally considered to be more specific for GI tract tumors, especially colon cancer. For gastrointestinal diseases, lung diseases, and other gastrointestinal organs such as the pancreas may also have increased CEA, and some benign diseases may also have increased CEA, especially when benign diseases liver disease, but the increase is not high, such as alcoholic liver disease, so there may be a very small number of patients with alcoholic fatty liver will have a mild increase in CEA, because CEA increase is not only related to tumors The reason is that CEA increase is not only related to tumor, but also has a clear relationship with normal mucosa and inflammation. Therefore, there is no need to panic too much about CEA increase, because it has some correlation with tumor, as long as regular follow-up examinations and regular gastroscopy are performed to rule it out regularly.