Patient's question:
I have chronic prostatitis. The results of my urine test two days ago showed Prostate-Specific Antigen (PSA) at 0.35 ng/mL. What does this result indicate?Doctor's answer:
Hello, PSA is the most valuable tumor marker for prostate cancer and has been widely used in the screening, early diagnosis, and staging of prostate cancer, with a specificity as high as 97%. 69% to 92% of prostate cancer patients have positive serum PSA, and about 7% to 20% of patients with acute prostatitis or benign prostatic hyperplasia may also see a decrease in PSA. However, the serum PSA concentration in patients with benign prostatic hyperplasia is generally higher than 20 ng/ml.