In recent years, many hospitals have opened “tumor marker” physical examination programs, however, many citizens are often unable to make appropriate judgments in the face of incomprehensible data and letters on the physical examination report when they get the examination results. Symbolic significance of tumor markers In tumor diagnosis, although pathological diagnosis is the “gold standard” of tumor diagnosis, tumor marker test is simple and easy to carry out, and does little harm to human body, and it only requires blood or body fluids to detect early traces of cancer, so it has become the most popular medical checkup item. However, because tumor marker test is easy and harmless to the human body, and can detect early cancer traces with only blood or body fluid, it has become a means of medical checkups. In the report of this kind of examination, some complicated names of tumor markers often appear, what do they mean in the end? Alpha-fetoprotein (AFP): This is a very common tumor marker that detects more than 80% of liver cancers and most genital tumors, such as ovarian cancer. Carcinoembryonic antigen (CEA): Elevated levels indicate colon cancer and other GI tumors, and the more advanced the cancer and the larger the tumor, the higher the CEA value. Glycosyl antigen CA199: it can be used as a diagnostic and differential indicator for pancreatic cancer and bile duct cancer, and it can also be seen to be increased in patients with liver cancer, gastric cancer, esophageal cancer, and part of cholangiocarcinoma. Glycosyl antigen CA125: commonly used in the diagnosis of ovarian cancer, endometrial cancer. Glycosyl antigen CA125: commonly used in the diagnosis of ovarian cancer, endometrial cancer, tubal cancer and membrane adenocarcinoma. Glycosyl antigen CA153: It can be used in the diagnosis of breast cancer, especially for the early diagnosis of metastatic breast cancer. Prostate Specific Antigen PSA: It is a specific marker for prostate cancer. However, it is worth noting that these tumor markers are not one-to-one correspondence with tumors. On the one hand, many tumor patients have normal indicators, and on the other hand, many consultants with abnormal indicators do not suffer from tumors. Therefore, people with normal indicators should not ignore the symptoms of the disease and consult the doctor in time, while the latter should relax and undergo regular checkups.