Sex coach Jennifer Stephan points out that masturbation is especially important for men with ED:

Often times men believe that masturbating is pointless if they are no longer able to achieve an erection.

That couldn’t be further from the truth.

So, let’s look at it from this perspective. You have a car and you aren’t able to drive it, but it has value. This means you have to maintain it. Wash it, keep gas in it, oil changes etc.

Your penis needs the same attention. First, with or without an erection you can have an orgasm.

Second, it’s important to continue masturbating even if you can’t get an erection. It will help you to maintain the length, because yes, you will lose length. Touch stimulates blood flow, nerves, arousal and continued intimacy.