What is PIN?
PIN is not prostate cancer.
PIN stands for prostatic intraepithelial neoplasia. It's the name for certain kinds of changes to cells in the prostate. These changes can only be seen under a microscope.
We don't know what causes PIN, but we do know that the chance of finding it increases as you get older.
Although PIN is not prostate cancer, many men with prostate cancer do have some PIN as well. Not all men with PIN get prostate cancer.