A PSA result often arrives as a single number on a lab report, sometimes flagged in red, with little explanation. This guide was written for that moment.
Understanding Your PSA Test explains, in clear everyday language, what prostate-specific antigen is, why there is no single “normal” cutoff, and why most elevated results turn out to have causes other than cancer. It walks through the steps that may follow a result, from a repeat test to additional markers, MRI, and biopsy, so you know what each one is designed to find out.
Inside you will find:
- What PSA measures and what it cannot tell you
- How infections, procedures, exercise, and timing can change a result
- How age, prostate size, and medications such as finasteride and dutasteride affect interpretation
- Why a repeat test is usually the first step
- Plain explanations of free PSA, PSA density, newer blood and urine tests, and PI-RADS scores
- What to expect from a prostate MRI or biopsy, including warning signs afterward
- How personal risk factors and current guidelines fit together
- Question lists for each stage and a PSA record you can copy
- A 20-question FAQ, a glossary of more than 50 terms, and 42 cited sources
This is an educational guide. It does not interpret individual results and is not a substitute for advice from a qualified healthcare professional.


