How will i know if my prostate cancer treatment has helped already?

PSA does not rise.: After prostate surgery, the psa should fall to undetectable levels. An undetectable psa is the measure of success, and a rise in psa signals local or distant recurrence. After radiation treatment, the psa falls to a lowpoint, or nadir, and should stay low. The same goes for metastatic cancer, where hormonal therapy should keep the psa from rising.

SERIAL PSA: Psa blood tests repeated at each physician visit.