Prostate removal does not shorten your penis, atrophy shortens your penis as the urethra shrinks due to lack of use. The current belief is that "morning wood" or nocturnal erections, of which most men have at least 4-6 a night, are there to prevent this very thing from happening. If you do not have ED and can maintain an erection, your length and girth should remain the same. If you do have ED then doctors recommend using a pump to keep the urethra stretched to prevent loss of size.

The only side effect that is guaranteed is loss of ejaculate, period. ED, incontinence, penis size, etc are all possible, depending on the results of the surgery - but not guaranteed.

My doctor put me on 5mg of tadalafil a month ahead of surgery to build it up in my system in case it was needed to provide erections after. That plus L-Citraline just help with any possible ED.

Hi...I'm 72, was just short of 70 when first diagnosed. The prostatectomy didn't shorten my penis and I'm able to have sex, except that I needed to abstain for 6 weeks after the sling surgery. Before the sling there was a problem with ejaculating urine, but that has improved.