It is not to fast but most likely it is not much to worry about. My ex husband and all of his brothers have had the same problem and gone thru the same tests it is normal for them to run a high psa but in order for the Dr.s to keep up with the psa it's important to keep a record of whats going on with him. My ex's family have infections without ever knowing it so make sure he does go thru with the test and stays with keeping it checked. It's much better to keep things in order than to be sorry about not doing it. Good Luck.