What is what does psa stand for?

PSA stands for Prostate-Specific Antigen. It is a protein that is produced by the prostate gland in men and can be detected in the blood. A PSA test is often used as a screening tool for prostate cancer as elevated levels of PSA can be an indicator of the early stages of the disease. However, it is important to note that a high PSA level can also occur due to other conditions such as prostate inflammation or enlargement, and the test is not always a definitive diagnosis of prostate cancer.