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Penis lengthening like bone lengthening?

Penis lengthening like bone lengthening?

In leg lengthening surgery, the tibia and fibula or each leg are broken and the two halves of each bone are affixed to a threaded splint that holds them apart. The threads are advanced to separate the bone segments 1mm per day until the desired new length is achieved.

Have you ever wondered whether PE gains work essentially the same way? Bigger talked about “pulling out” his penis by hanging, but the amount he pulled out exceeded anything that was within his body. Perhaps the tunica has a weak point, analogous to the break in the bone above, which stretches in response to regular stress, while the rest of the tunica remains substantially unaffected.

Has anyone noticed, especially from hanging, whether the penis grows proportionally, or whether it feels like your old penis is just being “pulled out?”

Hey Mr Wizard.

I saw something on tv about the bone lengthening, as to what you subscribed. The person had a leg that was much shorter than the other, and they were able to lengthen it. They might have done the same with someone’s arm also.

I recall the doctor leaving the device that stretched the leg on, full time.

I felt the a PM (stretcher), had the same principle. Even if it was being “pulled out”, it’s still basically stretching, in my mind.

cead mile failte :lep:

Apparently, the tunica has no outer (longitudinal) fibers at the 5 and 7 o’clock positions. (see citation below).

I previously thought the outer layer formed a perfect cylinder.

If any part along the length of the penis has fewer longitudinal fibers than the other parts, that part will stretch proportionally more when subjected to a load.

Does anybody know whether there is such a part?…9&dopt=Abstract

The anatomy of the tunica albuginea in the normal penis and Peyronie’s disease.

Brock G, Hsu GL, Nunes L, von Heyden B, Lue TF.

Department of Urology, University of California School of Medicine, San Francisco, USA.

PURPOSE: We studied the fine architecture of the tunica albuginea of the penis. MATERIALS AND METHODS: The study included 6 human male cadavers and 10 surgical patients (5 with Peyronie’s disease and 5 with normal penile anatomy). RESULTS: The tunica albuginea of the corpora cavernosa is a bi-layered structure with multiple sub layers. Inner layer bundles support and contain the cavernous tissue and are oriented circularly. Radiating from this layer are intracavernous pillars acting as struts, which augment the septum and provide essential support to the erectile tissue. Outer layer bundles are oriented longitudinally. These fibers extend from the glans penis to the proximal crura, where they insert into the inferior pubic ramus. There are no outer layer fibers between the 5 and 7 o’clock positions. Elastic fibers normally form an irregularly latticed network on which collagen fibers rest. In Peyronie’s disease the well ordered appearance of the collagen layers is lost: excessive deposits of collagen, disordered elastic fibers and fibrin are found within the region of the plaque. CONCLUSIONS: The normal 3-dimensional structure of the tunica affords great flexibility, rigidity and tissue strength to the penis, which are lost consequent to structural changes in Peyronie’s disease.

PMID: 8976279 [PubMed - indexed for MEDLINE]

Even more detail in this study:…stract/25/3/426

Anatomy of the Human Penis: The Relationship of the Architecture Between Skeletal and Smooth Muscles
From the * Microsurgical Potency Reconstruction Center, Taiwan Adventist Hospital, Taipei Medical University Hospital, the Department of Anatomy, College of Medicine, Taipei Medical University, and the Department of Anatomy and Cell Biology, College of Medicine, National Taiwan University, Taipei, Taiwan, Republic of China.

Correspondence to: Dr Geng-Long Hsu, Microsurgical Potency Reconstruction Center, Taiwan Adventist Hospital, 424 Pa-Te Rd, Sec 2, Taipei 10558, Taiwan, Republic of China (e-mail:

To investigate the anatomy of the ischiocavernosus muscle, bulbospongiosus muscle, and tunica albuginea and to determine their relationships to smooth muscle, which is a key element of penile sinusoids, we performed cadaveric dissection and histologic examinations of 35 adult human male cadavers. The tunica of the corpora cavernosa is a bilayered structure that can be divided into an inner circular layer and an outer longitudinal layer. The outer longitudinal layer is an incomplete coat that is absent between the 5-o’clock and 7-o’clock positions where 2 triangular ligamentous structures form. These structures, termed the ventral thickening, are a continuation of the anterior fibers of the left and right bulbospongiosus muscles. On the dorsal aspect, between the 1-o’clock and 11-o’clock positions, is a region called the dorsal thickening, a radiating aspect of the bilateral ischiocavernosus muscles. In the corpora cavernosa, skeletal muscle contains and supports smooth muscle, which is an essential element in the sinusoids. This relationship plays an important part in the blood vessels’ ability to supply the blood to meet the requirements for erection, whereas in the corpus spongiosum, skeletal muscle partially entraps the smooth muscle to allow ejaculation when erect. In the glans penis, however, the distal ligament, a continuation of the outer longitudinal layer of the tunica, is arranged centrally and acts as a trunk of the glans penis. Without this strong ligament, the glans would be too weak to bear the buckling pressure generated during coitus. A significant difference exists in the thickness of the dorsal thickening, the ventral thickening, and the distal ligament between the potent and impotent groups (P .01). Together, the anatomic relationships between skeletal muscle and smooth muscle within the human penis explain many physiologic phenomena, such as erection, ejaculation, the intracavernous pressure surge during ejaculation, and the pull-back force against the glans penis during anal constriction. This improvement in the modeling of the anatomic-physiologic relationship between these structures has clinical implications for penile surgeries.

Hmmmm. If the longitudinal fibers surround both corpora cavernosa together, then what happens when the crura separate within the body? Are there no longer any longitudinal fibers?

If this is true, it suggests that length growth could occur mostly internally, where the resistance to longitudinal stress is weaker.

tunica albuginea corporum cavernosorum : the dense, white, fibroelastic sheath that encloses the corpora cavernosa penis. Its superficial, longitudinal fibers form a tunic surrounding both corpora, and the deep circularly coursing fibers surround them separately, uniting medially to form the septum of the penis.

You have to remember two things when looking at where the tunica is or isn’t found. One is that the crura (legs) of the penis, the internal divergent parts of the corpora cavernosa, are firmly attached along their length to the pubic bone. Second, even though there are no longitudinal fibers of the tunica in the area of the corpus spongiosum (between 5 and 7 o’clock when viewed from the glans) Buck’s fascia is there and completely surrounds both the two CC and it also surrounds the CS creating two compartments (one for CS, one for both CC) and the external layer of the tunica is adhered to Buck’s fascia.

Thanks West. I was hoping you would find this and comment. Do you have any opinion on whether the tunica has a “weak spot” along its length?

I’ve read that the tunica is thinnest at the bottom and gets progressively thicker to the top. To say that there is no tunica between 5 an 7 o’clock is a bit of a curve ball. There is tunica all the way around the CC’s, but the CS on the bottom is outside of the tunica (the 5-7 o’clock reference). I haven’t done any searching on the bucks fascia, but would imagine it is a minor issue compared to the tunica. Perhaps something like muscle fascia?

The bit that I believe is the toughest to reach is the vertical ‘I’ beam running down the centre of the two CC’s, since the rest of it you can reach with bends/jelqs etc. But the middle seems to be mostly the preserve of stretching. If anyone has ideas of how to affect the ‘I’ beam I’d be most interested.

I think this could be imporant to know. If the tunica is thinner (weaker) toward the bottom (base), then one would expect growth to be concentrated there. The subject of hanger placement or gripping technique could be greatly simplified if we knew exactly what tissue grows when hanging.

For example, if growth occurs primarily at the base, it makes no sense to try to attach a hanger really close to the glans, except possibly to avoid stretching only skin.


The septum is really stubborn. Wouldn’t it be interesting to learn that length growth actually occurs behind the septum, where the crura separate. It would kind of take the septum out of the equation.

With hanging I’d expect most growth to be from lig changes. People who hang often seem to have a lower exit/insertion point of their penis to the body. I’m not a hanger so can’t add my own experience to that, but if I look at my gains and subtract the notional ‘deformation gain’ routines (I done two of these with nearly a year break inbetween) then there’s probably only about 30% that could be attributed to lig or tunica growth. Even though I didn’t hang, I’m sure that there must be some lig consession, which probably leaves say 10-15% for actual tunica growth (about 3-5mm in my case). Since I’m a very sporadic PE’er though (99% theory then 1% precision exercise), that’s not nearly as bad as it sounds considering the actual time under tension.

Very interesting. I wonder if the leg lengthening can occur at any age or is it only during youth?

Also, I believe the longitudinal fibers is the Buck’s fascia. Anyhow the bucks fascia is continuous with the fascia of the abdomen and sctoal fascia. So when the crura diverge the outer fascia is no longer there. That is my understanding.

-Still bitter the y2k bug was a dud.

-My dear boy, do you ask a fish how it swims? (No.) Or a bird how it flies? (No.) Of course not. They do it because they were born to do it...

You’re thinking of Colle’s (Dartos) fascia Tube. Buck’s surrounds the CC all the way to the tip of the crus and the CS all the way to the bulb. The tunica does have two layers and they are distinct from the fascia.

Thanks west, I was working with a somewhat fuzzy memory.

-Still bitter the y2k bug was a dud.

-My dear boy, do you ask a fish how it swims? (No.) Or a bird how it flies? (No.) Of course not. They do it because they were born to do it...

OK then. Do any of you gentlemen have any reason to think some parts of the tunica are weaker than others are could thus be more easily stretched?

Originally Posted by Tube
I wonder if the leg lengthening can occur at any age or is it only during youth?

I believe the surgery is performed on healthy adults. In fact, I think it’s discouraged for anyone who hasn’t finished growing.

Bone is basically collagen mixed with minerals. A broken bone starts to heal when a fibrin (collagen) bridge is formed between the two broken segments. That bridge becomes denser and more calcified as time goes by. Length can be adjusted by separating the ends of bone (i.e., stretching the collagen fibers) before the bridge substantially calcifies.

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