I was having urological problems, low back pain, loss of sex drive, etc. Dr. said it was prostatitis. PSA came back 15.9, so I went on cipro (antibiotic) for three weeks. Next PSA came back 30. Went to urologist, who said it almost assuredly was not cancer with those numbers, put me on doxycyclline for 8 weeks. After 3 weeks, symptoms have not improved. When driving, my low back pain spreads into the testicles and they ACHE. Can hardly stand it. Made appointment to see urologist again next week. Can prostatitis cause psa to spike like this?