First, let's be clear. Viagra is not a penis enlargement pill. It is an erection-inducing pill.
However, for years we've received reports from readers that they felt like Viagra made them longer or thicker than usual. Here are just a few of the dozens of reports we've received:
"My wife said that the Viagra made my dick bigger than it has ever been."
"She noticed I was both longer and thicker."
"I am bigger and harder than ever before, and i shoot my load farther than I have ever seen."
"Lasted much,much longer than usual. Bigger and longer in size also."
What is going on here? Could Viagra actually be increasing penis size?
We think there are two things going on. A full erection is likely to be larger than the partial erection many men get without Viagra; in this case, men may actually be bigger on Viagra. They probably aren't bigger than they were when they didn't have erectile difficulties, but they may in fact be bigger than the have been since suffering from ED.
Another factor is that Viagra does make men harder than usual, often even harder than they were before they had ED. Being so hard can feel to their partner like they are bigger. In other words, they may be making a bigger impression, even though the actual size may not be increased.
We don't know of any clinical studies of this issue, so we're left with this anecdotal evidence and our best guesses. But these consistent reports should not be ignored.