So what happens when you go to the urologist?
Do they just ask you about the issue and prescribe meds? Or put you through... a bettery of tests and stuff?

My assumption is you want a prescription for an ED medication.

If you are a little apprehensive about seeing a urologist, in most cases your primary physician will be glad to prescribe whatever you ask for.....and yes, they normally have samples.

You really should go see a urologist tell him your problem and get examined. you need to know why your dick went limp.

Well yes it's an ED thing -- but mainly with my wife, not in the hobby (though I hear I might get an extra pop and better rebound).
I would expect to get prostate exam, but apart from that .. do they take your word for it or try to figure out 'natural' solutions before prescribing stuff?

Don't be embarrassed to tell your doc that your SO doesn't do it for you, but a bit of strange gets you hard as a rock, if that's the case. You're going to a physician, not confession. The urologist has many tools in his arsenal to help you keep the home lady happy.  The only thing they emphasize is to use protection when you hobby. They never judge. At least mine doesn't.  

I would hope a doc would try to, as you say, figure out natural solutions and look for any underlying causes before jumping to a prescription.

I have no idea when you last had a complete physical but I suspect the urologist might want a full blood test (including PSA)
apparently they can tell a lot from a blood test. and yeah the dreaded prostate exam. as I trust you know 50+% of all men have an enlarged prostate. you need to know if yours is. If so there are meds to take care of that and "V" can be taken when needed with those meds. just follow the doc's instructions.

Certainly not all that unusual that the wife or SO no longer does it for you.  

Get checked out asap. Blood test and maybe a stress test/ Healthy heart / healthy penis. Could end up saving your life. The same plaque that restricts blood flow to the penis can be present in the coronary arteries.

if he/she is a good urologist they are going to want to check the equipment. Be prepared that they will want to check prostate as well as penis and testicles. You will be asked to complete a survey on sexual function and any possible urinary issues. Needless to say, be very honest on the surveys, as it gives them a starting point to how to help you.  A really good uro will also want to have a health history and current list of medications.  Remember, they are called "pecker-checkers".
As others pointed out, if you just want a prescription for hard on pills, just ask your primary care doctor.

1. Age have caught up with you and can no longer get a boner naturally, lost all the feeling of sensations and the worse is with the help of medical science and medications and injections etc, will help you temporarily and eventually just a matter of time all the horny feelings will completely abandoned your genitals and your heads..

I take care of more than 1/2 dozen men int heir 80s who after losing a spouse have remarried and with their new wives are having the sex life to fair lives. Prdivous marriages were good and long for all the partners involved men and women and now both partners in each marriages have rediscovered passion.  Sone the men have have heart failure others have other problems, but there is joy and really pleasure and passion one each of thee new marriages of old people.  
Most of the couples are traveling a lot tho many are just raging home together.
I would say that more than half to the men and women I see are hight functional people who, if for 30 years earlier would have been dead or demented. They are not now because of excellent easy to tolerate blood pressure medications which have kept them clear thinking and alive (along with some excellent cholesterol medication, great vaccinations, much better delivery room technique.  
Many of my male patients have survived ver prostate cancer without having need radical prostatectomy.  
I don't know what I'll be missing when I die within the next decade or two and don't get to see medicine of fifty years from now.  

Discuss your concerns with him/her. If you have an issue that can be treated safely with meds, they will be able to prescribe the appropriate medicine confidentially.

My orthopedic wrote my Rx😉

Just had prostate biopsy....😳.  All is well, but wow.