6 doctors weighed in:
Can a blood test detect cancer?
6 doctors weighed in

Dr. Kenneth Cheng
Family Medicine
3 doctors agree
In brief: Only a few cancers
Unfortunately, there are very few cancers that can be detected through blood tests.
These include prostate cancer and leukemia. Some other cancers have tumor marker tests, such as breast cancer, ovarian cancer, colon cancer, pancreatic cancer, and others but these are to monitor, not detect the cancer.

In brief: Only a few cancers
Unfortunately, there are very few cancers that can be detected through blood tests.
These include prostate cancer and leukemia. Some other cancers have tumor marker tests, such as breast cancer, ovarian cancer, colon cancer, pancreatic cancer, and others but these are to monitor, not detect the cancer.
Dr. Kenneth Cheng
Dr. Kenneth Cheng
Thank
1 comment
Dr. Michael Thompson
I would add that germ cell tumors (eg testicular cancer) and liver cancer (Hepatocellular carcinoma - HCC) can be diagnosed by blood tests. However, they are usually confirmed (in more recent years) by biopsy. Some "tumor markers" may be non-specific or may correlate with cancer growth, but still be challenging to know how to use for patient care.
Dr. Chaim Colen
Neurosurgery
1 doctor agrees
In brief: Depends
Certain cancers, like colon and pancreatic may have positive "tumor markers", but it depends on cancer types.

In brief: Depends
Certain cancers, like colon and pancreatic may have positive "tumor markers", but it depends on cancer types.
Dr. Chaim Colen
Dr. Chaim Colen
Thank
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