Male reproduction related behavior and testosterone

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The Case of the Man Who Lost and Regained His Manhood

The very first case report of the effects of testosterone replacement therapy concerned an unfortunate 38-year-old World War I veteran, who was castrated in 1918 at the age of 19 by a shell fragment that removed his testes but left his penis undamaged.

His body was soft; it was as if he had almost no muscles at all; his hips had grown wider and his shoulders seemed narrower than when he was a soldier. He had very little drive…. Just the same this veteran had married, in 1924,and you’d wonder why, because the doctors had told him he would surely be impotent[unable to achieve an erection]….he made some attempts at sexual intercourse for his wife’s satisfaction but he confessed that he had been unable to satisfy her at all….  Dr. Foss began injecting it [testosterone] into the feeble muscles of the castrated man…. After the fifth injection, erections were rapid and prolonged….But that wasn’t all. During twelve weeks of treatment he had gained eighteen pounds, and all his clothes had become too small….testosterone had resurrected a broken man to a manhood he had lost forever.

Case Analysis -:

This case shows that testosterone had some effects on male sexual behavior but not relate high testosterone level with high sex drives in male . as in this case when testosterone is injected to the veteran the veteran comes in to his previous sexual stage as when he is before the war .

So we can say that testosterone effects the male sex behavior but didn’t increase sex behavior. sex drive and testosterone is uncorrelated , in healthy man .

Grunt and young experiment to prove this assumption is on guinea pig. They divided male guinea pigs into three experimental groups low , medium and high sex drive .following castration, the sexual behavior of all pigs fell to negligible level within few weeks, but it recovered after the initiation of a series of testosterone replacement injections. Each subject receive large replacement injections and they returned simply to their previous level of copulatory activity. So conclusion is clear: with respect to the effects of testosterone on sexual behavior, more is not necessarily better.


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