As I said inquiring minds want to know...

Do I have PCa?

How do I know?

If yes, what is the risk - Low, Intermediate, High...?

As @jeffmarc says, there are ways of determining that though DRE and Biopsy may not always tell the whole story.

Here's some other ways, discuss with your medical team:

Links to ways to determine if one has Pca.
https://www.medpagetoday.com/urology/prostatecancer/118778
https://www.google.com/gasearch
https://www.google.com/gasearch
https://www.google.com/gasearch
https://pmc.ncbi.nlm.nih.gov/articles/PMC4495493/
Clinical data is critical in making an informed decision whether to treat and if so, with what, for how long?

As to the nerve sparing surgery...I can relate my experience.

I had my nerve sparing surgery in 2014 at the age of 57. It took about a year for erections to return. What's different?

Orgasms are dry, no semen.
Erections require greater physical and mental stimulation to achieve

Other than that, not difference...for me. There are others on this forum who definitely do dot share my experience!

You can search for "Penile Rehab Therapy." It is a stair step methodology to regaining sexual function after surgery. UCSF has a well laid out explanation -https://urology.ucsf.edu/patient-info/adult-non-cancer/male-sexual-and-reproductive-health/erectile-dysfunction

The old adage, "look before you leap..." may apply here.

Kevin