Biopsy should be a "last resort."
You've lived 69 years with generally "normal" PSA, then in the last year it jumped to 13.4 ng/mL.
Yes, you probably do have some amount of measurable "prostate cancer" simply because most men over age 50 do. *SEE NOTE BELOW
But, it's highly
unlikely that after 69 years this measurement result was the result of a rapid explosion of PC cells...it just doesn't work that way. Something else is contributing.
The AUA (American Urological Association) guideline for "best practices" says that urologists should try to FIRST eliminate non-cancerous causes BEFORE jumping to biopsies. Prostate biopsies cause a fairly high rate of problems and are not risk-free...and there are lots of benign reasons for spikes like yours.
If your doc wants to jump to biopsy, I'd question why he/she is not following AUA guidelines; published free, online here:
/www.auanet.org/education/guidelines/prostate-specific-antigen.cfm*NOTE: Autopsy studies on men of all ages who died of accidental causes found that measurable amounts of PC was found in men at a rate approximately equal to their age. So, 50% of 50-year olds, 70% of 70-year olds, etc. But by far these were indolent cases which never would have been found and never would have bothered the men. BUT, if they were led down a path of having a biopsy, they probably would have gotten onto the slippery slope of being pressured to follow an unnecessary aggressive treatment. Overtreatment for PC is epidemic in the United States (and elsewhere).