Nowadays, many people will check tumor indicators when they attend medical checkups. There are many tumor indicators, and most of them are English codes, such as CEA, Ca199, Ca125, PSA, etc. What parts of the tumor do these codes represent, and how should we respond if they are elevated? As an ordinary person, you do not need to know the specific clinical meaning of each index and the pathological mechanism of elevation, such as what PSA is and what pathological mechanism causes this elevation. They only need to know what part of the body is likely to have tumor and what further examination is needed if a certain index is elevated. Therefore, this article compiles the common tumor indicators in domestic medical examination as follows. Read the following to know the name of tumor markers, what parts of the body may have tumor and what further examination is needed. CEA is not a specific marker for malignant tumor, but it has auxiliary value. Elevated CEA – can be seen in esophageal cancer, stomach cancer, liver cancer, pancreatic cancer, colon cancer, gallbladder cancer, lung cancer, breast cancer, bladder cancer, cervical cancer, etc.