Please click on the Harvard link for the PSA reliability:
Your feedback on your experiences of having constant blood work (PSA) will help us all as to whether it is best to go in accordance with PSA check. Will this help or worsen the disease when it comes to treatment? Overtreatment could kill us faster like too much chemotherapy will kill us faster because our body immune system will definitely go down the drain much faster. As a result, our white cells are destroyed until we are not able to defend ourselves any longer.