"The majority of these patients are dissatisfied after these procedures. Research should be directed toward non-surgical options," said Yoram Vardi, of the Rambam Medical Center in Haifa in an editorial in the Journal of European Urology.
Vardi was part of a team of urologists who questioned 42 men who had undergone penis-enlargement surgery and found the dissatisfaction rate was very high. Often the men requested additional surgical procedures.
One of Vardi's colleagues, Nim Christopher, a urologist at St Peter's Andrology Center in London concurred.
'Average increase in length 1.3 cm'
"For patients with psychological concern about the size of the penis -- particularly if it is normal size -- there is little point in offering them surgery because it makes no difference.
"The average increase in length is 1.3 cm (0.5 inches) which isn't very much, and the dissatisfaction rate was in excess of 70 percent," said Christopher.
Christopher added that spam e-mails advertising penis enlargement surgery were inaccurate and gave men unrealistic expectations.
Rather than having surgery, both Vardi and Christopher said the men should be referred for psychological counseling.