Originally Posted by avocet8
There are no such valves in the penis, like there are in, say, the veins in arms and legs which stop the back-flow of venous blood.What causes an erection to keep going is the increasing pressure of the tunica (as the CCs expand) against the veins which carry blood out; this almost seals them off.
Venous Leakage is another animal and not related to valves.
Originally Posted by RisingUpTo7
Response to my question:
They do have valves. Not each of there articles is written perfectly.but what worries me that the MERCK article(Overview of Male Sexual Function - Genitourinary Disorders - Merck Manuals Professional Edition) is obviously wrong. "Venous drainage occurs through venules below the tunica albuginea. Unlike other venous structures, penile venules have no valves; these venules close by compression against the tunica, as the corpora fill with blood."
Maybe it is just written superficially and they didnt mention the few veins containing valves? There are also anastomoses, connection between the venous systems (deep, superficial) that make it harder for me to understand how closing the venous system (keeping up the erection) works."The veins leading from the penis have funnel-shaped valves that reduce the outflow of blood. As the erectile tissue begins to enlarge, the additional pressure causes the veins to be squeezed against the surrounding fibrous tissue, and this further diminishes the outflow of blood. Essentially, blood becomes temporarily trapped in the organ"
Erection Definition & Meaning | Dictionary.com
"In this theory, the “push” on the small closing valves of the veins is stronger than the veins’ ability to resist. As a result, the veins are not able to “close” tightly enough to stop blood from passing out of the penis, causing difficulty in maintaining an erection."
Causes and Risk Factors of Erectile Dysfunction
Well, it’s a theory. But the theory is about the mechanism and not if there are valves or not. They clearly are there.
"Blood is pumped from the heart into the penis under great pressure and a series of valves keep it in the penis to maintain the erection. "
"It is the Peyronie’s plaque that causes the veins of the penis to not close properly. There are special valves within the veins of the penis that close off at special times, to trap the blood inside the penis – to create an erection. If the veins do not trap the blood, no erection."
All written by MDs..
Not to be too picky but this is medical information written by writers who are not MDs. It’s using information they got from MDs but there are some journalistic shortcuts taken.
Even after reading much about valves in the penis I see nothing about valves in the vessels that lead into the penis. The way I’m doing a reverse jelq I know I’m having more of an effect of backing up the blood that’s leading into the penis, and little to nothing to affect the veins taking blood out of the penis, which is where the valves are. So I don’t think I’m in danger of causing any valve damage.
My first introduction to a "reverse jelq" so to speak, had nothing at all to do with PE. My days of visiting escorts are pretty much over but over the years I met some women who were very very experienced and had a lot of tricks up their sleeves. There were a few who employed the "reverse jelq" to help me get it up. Back in the day before viagra especially the best skilled prostitutes had more pressure on them to be proficient at helping a guy who was struggling to get an erection. So I’ve continued to use the technique as an aid in achieving an erection. Used in that way I doubt there could be any danger at all. It’s mild, short term and employed rarely, etc. Basically you just take a half erect penis and squeeze a little, maybe stroke downwards maybe not, to back up blood pressure on the artery leading into the penis. This stretches it out a bit, so when you release the pressure, it’s widened so more blood can flow in.
I even knew one chick who was so talented with her pussy muscles that she could perform a reverse jelq with her vagina. I was just a bit over half hard and struggling to get stiffer. She guided me onto my back telling me she wants to be on top. I tried to tell her, no, I’m not ready, I don’t think this is gonna work.. Her decision really had a negative effect on my psyche because I was embarrassed to not be erect and knew that putting her on top would only highlight that fact and I knew this would fail. But she seemed determined so I figured maybe she’ll give me head or something. But she forced/shoved the head of my dick past the rim/opening of her pussy. Then she gripped it with her pussy muscles and stretched it upwards. Then she loosened the grip, moved downwards, of course my dick was a little bendy but she she effectively telescoped it down and then squeezed and held downward pressure so I felt pressure in the taint. She held for a few seconds.
Then she gripped and stretched it upwards again, and repeated the process. Each stroke she got another few centimeters of my dick inside her, each stroke slightly increased stiffness, with each stroke she was able to increase the downward pressure and the intensity of the squeeze. Eventually I was fully erect and she continued riding on top.
You gotta admit, that’s talent, for a chick to be able to ride cowgirl on a half-hard dick and reverse jelq and stretch it to full erection using only her highly coordinated pussy muscles. She was only like 30 years old.
Anyways I see no harm in using this type of technique in this way, that is to help get an erection.
