In this guest column, UTMB’s Dr. Elizabeth Jaramillo writes about the Prostate-Specific Antigen test and decreasing the rate of over-diagnosis, false positives and unneeded biopsies. “Prostate cancer has some aggressive forms, but usually it is a very slow-growing cancer. Especially in older men, the cancer grows so slowly that other diseases will likely cause mortality before the cancer causes symptoms or spreads.”