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I've seen several messages about injection pain, drawing blood back into the syringe to make sure you hit the corporus cavernosum (CC), large black and blue marks (BB), injections sometimes working - sometimes not, etc., etc.

The bottom line is -- If your injection does not go directly into the CC, it probably will have little effect.

So, here's my take -- The tunica membrane that covers the CC is quite tough. You need to puncture completely through it to reach the CC. If you inject into the tunica, it may take the injection without too much resistance, but you will wind up with a large BB mark size depending on how much fluid was injected, but I've heard #s exceeding 1" dia. It's ugly but you won't die. Will go away in a week or so.

If you hit a vein, contrary to what's been posted here, it usually won't cause a BB, but you will bleed from the injection site. Scary, but again, you won't die. Put pressure on the bleed for a few minutes and it will stop. However, if you hit a relatively large vein, your chemical will likely be carried back into the main bloodstream and little to no erection will occur.

Below is an injection technique that I found (after lots of trial and error) to work consistently.

1. If you have a penis pump use it before you inject for about a minute or two before to plump up. Do not use a compression ring before injecting or you will guarantee some bleeding.

2. Before filling your syringe, move the plunger back and forth to get a feel for the unloaded stiffness of the particular syringe. Pick a general injection site and spread your skin at that point tightly to better visualize the veins. Pick a spot between veins.

3. Many guys are apprehensive about injecting and thus, inject themselves gently to avoid pain. A thin needle (30 or 31 ga) causes virtually no pain. Push the needle in with a smooth and firm action.

4. After the needle is in, press it in hard enough to dimple the skin about 1/8" to guarantee the needle tip has broken thru the tunica and is into the CC. Release the pressure until the dimpled area is back to normal.

5. Press the syringe plunger to inject. If you're in the CC, you will feel no more resistance on the plunger than you noted above. If you feel resistance, pull the needle out a little and try again. If you sill fee resistance, pick another site.

It took me a long time to get to this technique, especially the dimpling, but since I started using it I have had had success with virtually every injection (and no more BB's).

Big

Will practice this. I wanted to use an auto-injector because I'm squirmish about "seeing" the needle go in! What's the needle length, the 1/8" dimple won't cause me to thrust into the urethra?

I use the auto-injector with a long needle. Perfect every time,

oow:

I use a 5/16, 31 ga syringe. Reaching the urethra depends on length of the needle as well as girth of your penis. Everyone is different. But if you hit the urethra, I think you'll know it, either via pain or bleeding or both. I had the same apprehension about seeing the needle going in. After a while, it stops being an issue.

Big

I have 2 different observations when I inject:

When I hit a vein, it leaves a BB mark even when I get into the CC.

I also occasionally miss the CC and inject in the wrong place, and don't get a BB mark.

I know we are all different, but I wanted to relate this.

Cigar56 wrote:I use the auto-injector with a long needle. Perfect every time,

Agree 100%. 1/2" 30G is perfect for optimal penetration. Use of auto injector isn't just for those who have a
*needle phobia*...it's actually optimal for penetration. I use Inject Ease, which allows for manual plunger.
The speed and trajectory of the needle allows for almost ZERO ERROR and full penetration. No wobble or
tentative penetration with the spring loaded syringe. I have NEVER felt a thing either!

I just stopped myself short of ordering the Inject-Ease. On consideration, I suspect that one would not be able to "feel" any resistance if a vein was being hit with an auto-injector. I believe that it's, inherently "safer" to practice the injection techniques. Already, I'm beginning to get over my "needle phobia" and am ordering the 5/16", 31G needles ...

oowright wrote:I just stopped myself short of ordering the Inject-Ease. On consideration, I suspect that one would not be able to "feel" any resistance if a vein was being hit with an auto-injector. I believe that it's, inherently "safer" to practice the injection techniques. Already, I'm beginning to get over my "needle phobia" and am ordering the 5/16", 31G needles ...

Good for you. The Inject-Ease always works for me. With the manual plunger on the Inject-Ease, you can feel resistance if there is any. From there it's just a matter of removing the needle, resetting in another place and plunging again. That makes it the same as if you were performing the task manually. But with the Inject-Ease I can only think of once or twice that I have had to do that. Good luck with what you decide.

Thank you Cigar56 for this information. I had imagined that the needle was "shot" into the flesh by some spring-loaded mechanism. Now I think there's no harm ordering - if I cannot use, I'll leave aside ...

oowright wrote:Thank you Cigar56 for this information. I had imagined that the needle was "shot" into the flesh by some spring-loaded mechanism. Now I think there's no harm ordering - if I cannot use, I'll leave aside ...

This devise injects via a spring loaded mechanism. It takes ALL the guess work out of injecting...except for the location.
All you do is press the plunger....slowly I might ad. The needle speed (momentum) is key...no wobble and no pain.
I think speed of travel is important for full penetration...something you may not get with manual technique.