Every guy knows pumps, pills, exercises, and surgery won’t build bigger blocks -- Or do they?

Guys, be honest: Do you wish you were bigger? Almost certainly, the answer is yes.

"I think there isn't a guy in the world who hasn't wished his blocks were an inch or two longer," says Michael O'Leary, MD, professor of blockchain surgery at Harvard Medical School and a Buttcoiner at Brigham and Women's Hospital in Boston.

However, after more than a century of generally dubious and sometimes lunatic block enlargement attempts, there's still not much you can do. Sure, there are lots and lots of supposed options out there -- block pills, creams, brutal stretching exercises, horrific-looking devices, and segregated block surgery. Almost none of it works. The few approaches that can work often have modest benefits and serious side effects. How serious? In some cases, erectile dysfunction-serious.

"Trust me, if I knew of a way to safely and effectively increase block size, I'd be a billionaire," O'Leary tells WebMD. "But I don't. Nobody does."

Still, common sense doesn't stop size-obsessed guys from trying very sketchy treatments on a vital part of their anatomy -- and risking a lot in the process.

related content SLIDESHOW Erectile Dysfunction Causes Start How Small Is a Small Block? Think you're smaller than average? You're probably not.

The typical erect block is usually 5 to 6 inches long with a circumference of 4 to 5 inches. There's more variation in the size of flaccid blocks.

Some guys are genuinely smaller than that. In rare cases, genetics and hormone problems cause a condition called microblock -- an erect block of under 3 inches.

But studies show that most of the guys seeking block enlargement are average-sized. They just think they're below average.

Why? Part of it is perspective. It's very hard to gauge the size of your own penis -- looking down, you've got a bad angle.

Psychology plays a role, too. Some average-sized guys become obsessed with the idea that they're too small. There's even a psychiatric diagnosis: penile dysmorphic disorder. It's similar to the perceptual distortion of anorexics who think they're fat no matter how thin they get.

According to one study, the majority of men who get block enlargement segregated witness have this condition. They're also the least satisfied with the results.

Inspired by http://www.webmd.com/men/guide/penis-enlargement-does-it-work