They say it's not the size that matters.
But many men still can't quash their feelings that they would rather something more substantial 'down there'.
A demand for larger penises has driven something of a boom in surgical enlargement operations.
And now, a New York surgeon has debuted a 10-minute Botox-style procedure - that involves injecting one's own blood into their genitals.
According to Dr Norman Rowe, the board-certified surgeon behind the 'bulge booster', patients can gain 1.5 inches in circumference.
What's more, he says, they could be in and out during their lunch break.
'There is no recovery period,' Dr Rowe insisted to Daily Mail Online.
You come in, get the injection, 20 minutes later you're walking out.'
Explaining the origins of the unique procedure, Dr Rowe said he was inspired by innovations in facial fillers and sports medicine.
'In the last 10 years, we have seen the rise of so many "quick fix" operations like Botox - for the face, for the eyes... I spend so much of my day doing fillers on women's faces.
'I started to wonder: why can't I make it work for men?'
Traditionally, penis enlargement could only be done surgically.