Can edging cause erectile dysfunction?

Not by itself, but excessive masturbation (whether or not you edge) can often lead to having problems getting and/or maintaining an erection - especially when with a partner.

Most guys who jerk off a lot do it to pron - and over time guys tend to get bored with the same material, leading them to seek out more extreme and/or 'taboo' material - and this can make it even more difficult to get/maintain an erection when with a partner (especially if they are unwilling to engage in the types of behaviors they enjoy watching actors perform in pron.

If a guy is having difficulty getting/maintaining an erection, one of the first things they should do is ditch pron completely.  They can still masturbate, but only do it when they actually get the urge, rather than out of boredom because they are sitting around surfing pron.  It can be extremely difficult to quit - especially because it is readily available online from a computer or phone.

I quit pron about six months ago, and it was one of the best things I've ever done.

after all edging is like leading the horse to water but not letting him drink

my dick is like farting and ****