Oncogenic antibodies are tested primarily by drawing blood. Oncogenic antibodies are tumor marker tests that are found in blood, cell tissues, and body fluids. 1. The tests for oncogenic antibodies include AFP, CEA, squamous epithelial cell carcinoma antigen, cytokeratin 19 fragment, carcinoma antigen 50, glycoconjugate antigen 199, carcinoma antigen 125, carcinoma antigen 242, carcinoma antigen 153, and prostate-specific antigen. 2. Initially, CEA was found to be elevated in colon cancer patients, and later it was found that blood CEA was elevated in 30% of patients with gastric, urethral, ovarian, lung, pancreatic, breast, medullary thyroid, bladder and cervical cancers; AFP is the earliest tumor marker found, and it is a common test for diagnosing primary liver cancer, which is found in about 87% of patients with primary liver cancer. 3. Oncogenic antibody test is not the only basis for confirming cancer diagnosis, it needs to be combined with imaging examination to diagnose the disease. Pathologic biopsy is the gold standard for cancer diagnosis. 4. Certain tumor markers can be abnormally elevated under certain physiological conditions or in certain benign diseases, which need to be identified. When the laboratory indicators are obviously abnormal, it is necessary to go to the hospital for examination in time to avoid delaying the condition.