when testicals lose size while on cycal as a result of no LH coming there way, is the size change a direct result of them not being filled with sperm or because there not filled with testosterone?

I believe that your testes shrink because they are not producing testosterone at a normal to high rate, and im sure you will have a lower sperm count on cycle, but dont quote me...
The testis are not "filled" with testosterone, but rather the loss in testes volume corresponds with a loss of spermatogenesis, which is the production of sperm. This is why some esters(Test E) of testosterone have been demonstrated as male birth control, although I doubt we will ever see AAS prescribed for that use.
so then alot of sex on cycle is not a good thing?
they're not f*ckin jizm filled donut holes ready to ooze everywhere yo!
smiley's analogy is a good one.
like a muscle group you've been ignoring. In this case its due to their inactivity.
no need for endogenous test, so then low / absent LH or FSH means no spermatogenesis as was said above.
i've heard of studies looking into androgens, and especially some progestins (like the real deal male contraceptives and **** they give to sex offenders) that are much worse than others in regard to the inhibition of spermatogenesis, and effects on motility...
in other words... feel free to bone your girl as often as you like
smaller balls = less sbhg and t
The testicles aren't "filled", they aren't storage pockets they're glands. When your body shuts down the gland the gland will atrophy.
All cells in the body have a lifetime and are doubling time - the heart, the liver, the skin - the cells all die eventually but are replaced by new cells. When a muscle or gland is not used, the cells do not double as quickly and thus the muscle will atrophy or shrink in size. Your testicles are smaller because you have less testicle. This is a way oversimplified explanation but it gets at the point.
I posted in the general chat a few months ago a news story about the use of low dose testosterone in China as means of male birth control. They were in experimental phases but essentially they were using AAS to shutdown sperm production. I think it is neither safe nor smart but the fact that they're doing it will make obtaining test in this country easier.... you know.... if you're into that sort of thing.
EDIT: Here is the link to my old thread: Male Birth Control Shot
i don't see the connection here? how did you arrive at this?
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Note that taking hCG on cycle can prevent testicular shutdown and shrinkage
I put this in bold because it hasn't been said and it should. If you are noticing shrinkage you should consider hCG.
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ofcourse you can to sex while you are on cycle...
would further shrink your testies that was my thought but it was wrong. HCG even on cycles of 5 weeks max? or only for longer inj cycles
Wasnt coming down on you just didnt understand. So no - sex won't shrink em. hCG can't really ever hurt but if you're testicles atrophy (shrink) for a few weeks you'll recover fine most likely. If you're going to be "on" for 4 months, 16 weeks, for example then it is a must.
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does it keep them full like off cycle or fuller than without hcg
I suppose it depends on the dosing and how responsive you are to it. I know that the longer you are on it the higher the dose needs to be to get the same affect. I'm in week 15 of a 16 week sustanon cycle and I've only noticed minimal shrinkage. I suppose I could up the dose to see if that helps but I like 500iu 2x/wk and since I'm almost done with the cycle I'm going to keep the dose the same.
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this is a subject that we will have to take your word and experiment on our and please nobody request pics lol