Reviewed: 13. Juli 2026
CEA Carcinoembryonic Antigen (CEA)
Unit: ng/ml
Quick Explanation
CEA is a nonspecific tumor marker mainly used to monitor already known tumor diseases, especially in the colon. Elevated values also occur in smokers and various benign conditions, and are not proof of cancer on their own.
📊 Reference Values
ℹ️ Reference ranges may vary slightly between laboratories. Always compare your value with the reference range from your own lab report.
🔍 Possible Causes
Value too high — possible causes
- ·Smoking
- ·Chronic inflammatory bowel diseases
- ·Liver or lung disease
- ·Known tumor disease (for monitoring)
This list shows possible causes — not a diagnosis. Only your doctor can correctly interpret your result.
🩺 Questions for Your Doctor
- →Is this value being used for follow-up monitoring or initial workup in my case?
- →What further tests are useful?
Have a complete lab report?
Medyra explains your entire lab report in plain language and prepares questions for your doctor appointment — free, in your language, in under 60 seconds.
Start for free →Medical Disclaimer
The content on this page is for general information only and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or pharmacist for health-related questions. Lab values should always be assessed in the context of your personal medical history.