There are many reasons why us men have Erectile problems, and lets take a good look at the most common cause of ED, Erectile-Dysfunction. It's performance anxiety,wher we either fail to get an erection,keep that erection or lose the erection too soon after vaginal entry, Failed Erections know no age limit, but once we have these erection failures,then we feed upon this failure, and then it becomes an ongoing physical and mental problem in the bedroom. I don't know what your age is but as we,men, get older our erection problems seem to increase, it just comes with our aging, body's hormoneal changes. So it would be wise to have a complete hormone work-up to see if a decreased hormoneal balance is the cause of your sexual problem. If you masturbate,and most of us men love this self-loving regardless of if we have a significant other to love. Quite often we are in such a rush to bring ourselves to an orgasm and ejaculation that we have taught ourselves to come PDQ, pretty-damn- quick, and our penis is only going to do what it has been taught to do. So when you masturbate do so with this in mind,go slow,take your time and see how long you can keep your erection without spilling over into your ejaculation, and if you feel that you are about to ejaculate, "STOP" and let your high state of sexual arousal subside, then once you have regained control of your penis once again, you then once again bring your penis to a high state of renewed sexual arousal but not to an ejaculation. You bring yourself as close to an ejaculation 6, times during each of your masturbation retrainning sessions. This is called the Start And Stop method in helping you to prolong your erections. Do look up the trainning of the P.C. muscles to increase the blood flow to your genitals, also once you have trained this muscle you'll be able to control your penis, not it controling your sexsual pleasure. Viagra does what your P.C. exersise do increases the blood flow to your penis, but P.C. Exersises have no side-effects.
Do hope that this is helpful.
Doug.