Prostate cancer is a growth of cells that starts in the prostate. The prostate is a small gland that helps make semen. It's found just below the bladder. The prostate is part of the male reproductive system. Prostate cancer is one of the most common types of cancer. Prostate cancer is usually found early, and it often grows slowly., Diagnosis. Tests and procedures to diagnose prostate cancer may include: Blood tests. Blood tests can measure the level of prostate-specific antigen in the blood. Also called PSA, this chemical is made in the prostate. Sometimes prostate cancer causes the prostate to make extra PSA., Tests used for prostate cancer screening include: PSA test. The prostate-specific antigen blood test, also called a PSA test, uses a sample of blood to look for a protein made by the prostate gland. Typically, there is a small amount of PSA in the bloodstream. If a higher than usual amount is found, it may indicate prostate cancer., Metastatic prostate cancer diagnosis often involves blood tests and imaging tests. A metastatic prostate cancer is an advanced cancer that has spread to other parts of the body. For metastatic prostate cancer, imaging tests can make pictures that might show the places where the cancer has spread. Imaging tests used to detect metastatic , Me: "The literature reports a few cases of prostate cancer progressing while PSA is still low-ish (e.g. < 2.0), but personally I haven't yet read of progression when PSA is < 0.01 on the ultrasensitive test." You: "Actually @northoftheborder The literature reports a few cases of prostate cancer progressing while PSA is still low-ish (e.g. < 2.0), ", For men facing diagnosis of prostate cancer this study might be helpful. The Decipher Prostate Biopsy test is used for patients following a cancer diagnosis to inform whether the patient is a candidate foe active surveillance, needs mono therapy or may benefit from intensified treatment..