What should you know about PSA values in prostate cancer?

PSA is made by prostate cells, including prostate cancer cells. Clinicians look at the starting value, changes over time, examination findings, scans, biopsy information and symptoms. A falling PSA after treatment may suggest a response, while a persistent or rising value may lead to further review. The meaning depends on the treatment used and how much prostate tissue remains.

PSA can behave differently after prostate removal, radiotherapy or hormone-based treatment. Medicines and treatment effects can alter the result, and a change does not automatically prove that cancer has spread or returned. Your oncology team interprets the trend alongside the full clinical record.

Attend the blood tests and appointments recommended by your cancer team, and keep the dates and values together. Tell them about new urinary symptoms, bone pain, medicine changes or treatment interruptions. Depending on your history, follow-up may include imaging, biopsy or treatment discussions involving Radiotherapy, Brachytherapy, Prostate Removal Surgery or other approaches.

If PSA rises, ask whether the change is confirmed, whether the timing of treatment could explain it, and whether another test or scan is needed. Do not compare your value with another person’s result because treatment goals and prostate tissue differ.

Contact your cancer team about a confirmed rise, a result that does not fall as expected, or new symptoms such as difficulty passing urine, blood in urine, persistent back or hip pain, or unexplained weakness. Seek urgent help for inability to pass urine, severe new pain, leg weakness or loss of bladder or bowel control.

Ask what trend your team is watching, what result would trigger imaging or a biopsy, how your current treatment affects PSA, and whether options such as Targeted Radioisotope Therapy or Bone-Strengthening Therapy are relevant to your situation.