Have a question. I always assumed that the only role of the prostate was to supply the ejaculation fluid. But can a large or inflamed prostate cause erection problems? Maybe there are muscles around the prostate that are important in achieving erections. Is this why one of the side effects of prostate surgery is ED?
I have had chronic prostatitis for many years. I can tell you that if the prostate is irritated or infected that it does affect the erection. If it is really irritated it is easy to lose the erection because the feeling in the penis has to be greater than the pain in the prostate for an erection and ejaculation to occur. ED is caused from prostate surgery because the nerves necessary for an erection are cut. Thus the prostate does a lot more than just provide the ejaculatory fluid. It has a definite influence on the erection.
There are a bundle of nerves on each side of the prostate gland. The area is like an onion in layers. Surgery is like pealing away. In my case, the nerves were very tight to the gland - they could not be pealed away - all gone. Natural erections are impossible for me at age 50.