Carcinoembryonic antigen, the name of which implies an ominous sign, is in fact one of the most important of all tumor indicators. Theoretically, all tumor indicators show a normal distribution. For carcinoembryonic antigen, the majority of non-malignant tumor patients, or 97%, have this indicator less than 5.2ng/ml, and about 3% of the healthy population have a value greater than this between 5.2 and 7.5. Above 10ng/ml, it is absolutely necessary to be highly alert and undergo the most careful and detailed examination, because above this level, it means that nearly 60% of people may have malignant tumor, but at this time there are no symptoms, then it is likely that the tumor in your body is still very limited or very small and can be cured by surgery and/or combined chemotherapy and other treatments (health tip: for people over 45 years old, please add CEA to your annual physical examination). (health tip: for people over 45 years old, please add CEA to your annual physical examination). So, who are the lucky ones who don’t have malignant tumors with elevated CEA? Authoritative treatment shows that the indicator can be seen mildly elevated including cardiovascular disease, lung inflammation and gastritis. Specifically, chronic bronchitis, emphysema, gastric ulcer, atrophic gastritis and cholecystitis, for example, may lead to mildly elevated CEA. Of course, if the index exceeds 7.5, or even 10ng/ml or more, you should not take any chances, and it is crucial to find an experienced medical oncologist! If unfortunately CEA is found to be elevated, please go to the oncology department of major hospitals, the following is what you need to know seriously: 1. It is better to draw blood again to check including CA199, CA724, CA242, and for ladies, CA125, CA153. If another indicator is found to be elevated, then you must dig the ground and dig out the evil stick of tumor. Recommendation index: 10 2. You can take the first step to have non-invasive examination, including fecal occult blood and “B” examination, including thyroid ultrasound, superficial lymph node examination, etc. Gynecological examination and breast physical examination are also very necessary. Recommendation index: 10 3. If you have a history of smoking, then you should definitely have a CT lung examination (chest X-ray or chest X-ray?). It’s a waste of time and money, please go directly to CT examination). Recommendation index: 10 4. Gastroscopy must be the next important examination item. For women, mammogram can be done before gastroscopy, and of course, ultrasound of the breast can be done directly. Recommendation index: 9 5. If all the above results are fine, then further colonoscopy can be considered next, because carcinoembryonic antigen is also found in colon cancer at the earliest. Recommendation index: 9 6. If there is still no problem, you can have the following choices: 7. PET-CT examination, which is expensive because it is a self-financed project, and it is also insensitive to those lesions that cannot be detected by ordinary examinations such as CT, but it may be helpful for more hidden lesions, such as lymph nodes and lesions in the intestinal wall of the stomach wall, and it is limited to those who are not sensitive to the cost. Recommendation index: 6 8. CTC is circulating tumor cells, for people with persistently elevated CEA and all other tests are negative, you can try cutting-edge CTC testing, once suspicious tumor cells are found in peripheral blood, then the cell source can be further traced, of course the technology is still in the range of high-end testing, we have carried out a cutting-edge research in the process of cooperation with Kang Sheng In collaboration with Kang Sheng, we have conducted a cutting-edge study aimed at conducting CTC testing for people with elevated tumor indicators and high suspicion of malignancy to clarify the cause of elevated CEA. Recommendation index: 6