Prostate-specific antigen (PSA) blood test

Prostate-specific antigen; Prostate cancer screening test; PSA

Prostate-specific antigen (PSA) is a protein produced by prostate cells.

The PSA test is done to help diagnose and follow prostate cancer in men.

Blood test

Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand. A needle is inserted into the vein, and the blood is collected in an air-tight vial or a syringe. Preparation may vary depending on the specific test.

How the Test is Performed

How to Prepare for the Test

How the Test will Feel

Why the Test is Performed

Normal Results

What Abnormal Results Mean

Risks