The Prostate Specific Antigen (PSA) test is a blood test used to measure the level of PSA in a man’s blood. PSA is a protein produced by the prostate gland, and an elevated PSA level may indicate the presence of prostate cancer or other prostate-related conditions such as prostatitis or an enlarged prostate. The PSA test is a simple and non-invasive screening test that can be performed in a doctor’s office or laboratory. However, it is important to note that an elevated PSA level does not always mean a man has prostate cancer, and further testing, such as a biopsy, may be necessary to confirm a diagnosis. Additionally, the PSA test is not recommended for routine screening in all men, and the decision to have the test should be made in consultation with a healthcare provider.