From what I understand..........tumor markers via blood are one way doctors can see how well treatment is going or whether there is 'cancer' circulating in the blood. I have read though that it can have both false and positive results that are NOT the result of cancer, so getting a CT and following up is the best option. If you read up on this or talk with your doctors they will tell you it can be a sign of cancer or returning cancer but can also be other things.

I am 13 years out from stage 1 invasive BC with no lyphnode involvement. I had double mast. My CA 27.29 has constantly stayed between 11-13. Last July it was 15 and this July tested at 22. I know that the threshold is 38. I am concerned with the rise. Does anyone have advise they would share? Thank you

I was having signatera labs done every 3 months for recurrence. Now my new Dr won't order it. I understand if it's elevated to stress. What would be the best way to find recurrence early and treat.