Carcinoembryonic Antigen (CEA)

Carcinoembryonic Antigen (CEA) is a protein found in the blood that serves as a tumor marker, primarily used to monitor certain types of cancer. High CEA levels may indicate cancers of the colon, rectum, pancreas, lung, breast, or ovaries. However, elevated levels can also be seen in smokers or individuals with non-cancerous conditions like infections and inflammatory diseases.

This test is commonly recommended for individuals diagnosed with cancer to track disease progression, treatment effectiveness, or recurrence. It may also be used in cases where cancer is suspected based on symptoms such as unexplained weight loss, persistent pain, fatigue, or abnormal bleeding.

A blood sample is collected for the test, and fasting is not required. While CEA levels can be elevated due to non-cancerous conditions, persistently high values may indicate tumor growth or metastasis. Doctors often use this test alongside other diagnostic methods to make informed treatment decisions.

CEA testing is suitable for all age groups but is particularly useful for individuals with a history of cancer or those undergoing cancer treatment. Since CEA is not a definitive diagnostic tool, further medical evaluation is necessary to confirm the presence of cancer or other health conditions. Consulting a doctor is essential to understand the test results and determine the next steps in management.