My first thought, what is the accuracy your Doctors lab uses? Is a 0.1 the lowest the lab will go?
My second thought - Ask your doctor!
To my knowledge, limited as it is, PSA is from prostate cancer cells.
But really - Ask your Doctor Torgeir
Sorry not to be of more definitive help.
65 - April 2013
Gonna Make Myself A Better Man tinyurl.com/28e8qcg
12 Jul 11 - 1447 (It's just a number! )
Scans showed active prostate cancer widespread in bones
Started HT treatments and Zometa for bone
31 Oct 11 - 46.6 Cheers!
25 Jan 12 - 75 - Crap
22 Feb - 99 - Restarted Casodex
22 Mar - 149 - Start Zytiga
25 Apr - 113
22 May - 66
19 Jun - 38 - YEAH!