A hypothesis about natural penis size, elastin collagen ratio.

Here’s that wikipedia page: Human penis size - Wikipedia

Here’s 2 threads I started months ago that try to deal with the collagen/elastin/growth hormone (posting mainly for my own quick linkage)

What special hormones causes Penile growth during puberty?

Show-er vs grower: it’s all about collagen elasticity?

How do you feel about this idea that elastin is dictating natural adult penis size?

I think DHT and testosterone have already been tested to my satisfaction. Without making a definite statement, I may have already tested DHT and DHT inhibitors (the theory of upregulating DHT receptor expression) with no benefit visible to penis size.

I’m not entirely ruling out DHT inhibitors though, because I have known two men prescribed a 5α-Reductase inhibitor due to cancer that have unusually large penises today. But their doctors prescribed penis pumps also and they’ve been at it for many years and that is far from what other men that have used the drug report.

Doctors actually prescribe penis pumps? Is that a regular thing? Under what conditions do they prescribe that?

But the idea that childhood elastin is dictating penis size makes a lot of sense.

But what about the whole digit ratio thing? That males exposed to more testosterone in the womb tend to have longer ring fingers relative to index fingers… does that also affect penis size? Is there a correlation between a long ring finger (due to high-T in the womb) digit ratio and penis size?

The effect of different hormones at different stages of development on different tissues is very complicated and I haven’t read enough on the subject to give a good answer. There are some studies I’ve seen about penis size and digit length ratios, but I don’t know that they’re very relevant. I know that defects in connective tissue can result in abnormally long fingers and other bones, but again it seems like a tangential subject.

Doctors sometimes prescribe penis pumps after prostate removal since many men experience penile shrinkage after treatment. The medical community knows penis pumps work, they just aren’t willing to give a statement about it since they don’t have a study to cite or see the benefit in doing so since they’re MDs, not plastic surgeons, and are supposed to be focused on keeping people healthy, not attractive.