A newly published meta-analysis of men from around the world shows that the length of the erect penis has reportedly grown by around 24% over the last 29 years.
Dr. Michael Eisenberg, a urologist and male fertility specialist at Stanford Medicine and who led the research, now wonders why this has occurred.
With this study having been published Tuesday in The World’s Journal of Men’s Health, other complementary research has shown that both sperm count and testosterone levels are falling.
Anything that changes the reproductive system is ‘fundamental to human existence, said Eisenberg, but also noted that penile length may not be directly related to fertility.
Studies have measured the lengths back at least 80 years, with Eisenberg’s team compiling data from 75 studies conducted between 1942 and 2021 and involving nearly 56,000 men.
The trend was noted, said Eisenberg, in different regions of the world and it was not isolated to specific populations. The study found that the average length of the erect penis across all regions and decades was about 5.5 inches.
On his part, urologist and men’s fertility specialist at the University of Utah Health Dr James Hotaling, said that, despite the study’s breadth, he’s not yet convinced.
The simplest explanation could be, according to Hotaling, that the ways of measurement changed over the years. For Eisenberg, the change in length could be correlated to earlier puberty but further research is required to corroborate the hypothesis.
#MaltaDaily