This is the long and short of it. A female doctor says most people overestimate the size of the average penis, claiming most men barely measure more than five inches even when they’re rock hard. Dr.

Editor’s note: This article has been updated to include more information about when the data was collected and where it was originally reported. It’s a stiff competition. A team of researchers alleged ...

Keersten Fitzgerald does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...

Some good news, guys: A new analysis of penis sizes will help reassure most of you that you're normal, researchers say. Many males worry about their penis size, even when there's no cause for concern.

Penis size figures prominently in discussions of the evolutionary biology of human reproduction and mate choice. Yet serious research lags well behind a pop culture driven by myths that few bother to ...