What is the normal level of prostate specific antigen (PSA)?

Prostate-specific antigen (PSA)

is a prostate-specific biomarker secreted by prostate epithelial cells and periurethral tissues. Prostate-specific antigen values can be used to assist in the diagnosis of prostate-related diseases, such as prostatitis, benign prostatic hyperplasia, prostate cancer, etc.

When this indicator is abnormal, it should be comprehensively evaluated by doctors in combination with other test results and specific conditions of patients to determine whether there is a risk of prostate cancer. If necessary, prostate biopsy can be used to confirm the diagnosis.