Prostate Specific Antigen (PSA) Testing and Cancer Detection: Guidance Notes for the Non-Urologist.

Prostate cancer is the most frequently diagnosed cancer in men and is a leading cause of cancer-related deaths. Prostate specific antigen (PSA) is one of the key tests that can aid in making such a diagnosis. It is, however, a test with both advantages and disadvantages. Despite having been a part of clinical practice for over 40 years, its use still represents many challenges. Clinicians across all specialties can benefit from gaining deeper insight into how it can be effectively integrated into their practice.