what do the numbers mean in a psa test
The chance of having prostate cancer goes up as the PSA level goes up. If your level is between 4 and 10, you have about a 1 in 4 chance of having prostate cancer. If it is above 10, your chance is over 50%. But some men with a PSA below 4 can also have prostate cancer. Factors other than cancer can also cause the PSA level to go up, including: 1  An enlarged prostate like BPH (benign prostatic hyperplasia--not cancer), that many men get as they grow older.