Men's anxiety about penis size has spawned a multi-million-pound global industry in clinically unproven "male enhancement products". While many men worry their penis is too small, research shows that most men's penises are normal and they needn't be concerned. Professor Kevan Wylie, a sexual medicine consultant, says men with concerns about their penis size should consider talking to a health professional before experimenting with treatments, which are mostly ineffective, expensive and potentially harmful.
First, even if you think you're small, odds are that your penis is a normal size. The average erect penis is four to six inches long, with a circumference of four to six inches. There's more variation in the size of flaccid penises. But that just means that a guy who looks well hung in the locker room isn't likely to get much bigger when erect; conversely, a guy who looks small will grow a lot.
Second, if you insist that you're small -- even when the ruler says you're not, you may earn yourself a psychiatric diagnosis: penile dysmorphic disorder. It's similar to the perceptual distortion of anorexics who still think they're fat no matter how stick thin they get. According to one study, the majority of men who get penis enlargement surgery have this condition. They are also the least satisfied with the results. "Men who have a normal penile length but are convinced they're small might benefit from seeing a psychiatrist instead of a surgeon," says Karen Elizabeth Boyle, MD, assistant professor of urology and director of Reproductive Medicine and Surgery at Johns Hopkins Hospital in Baltimore.