The body is still not fully developed at 17 - 18 years of age. Therefore, I was wondering, if a male of that age would undergo chemical ( or surgical ) castration, would his chest grow unusually large as he ages?

I highly doubt that,

Unless he was on female hormones,

Why would female homrones affect chest bone growth? Wouldn't they simply result in breast development?

Oh,

Sorry I didn't understand your question,

I'm pretty sure that his chest would not grow abnormally large if he was chemically castrated or castrated.

So that would only happen with pre-pubertal castration even though the chest bones are not completely formed around 17? Do you know the reason for that, would be quite interesting to know.

I should have said in my post,

I'm not quite an expert in this area (Or any for that matter :p )

I'm sure that one of the forums more knowledgeable members can help you out.

With chemical or physical castration in late teens the bone increase may slow down in the chest and the whole body. Would be hard to say how much or how little change would happen.

If you are asking if the breast will increase greatly as in a females breast, the answer would be no. For that to happen you would need to be on female hormones and stop the male hormones.

I merely mean the chest bones. Do you know what it is that causes the increased chest bone growth in pre-pubertal castration? Perhaps that could help in finding an answer to whether castration in late teens also increases that growth to some extent.

I do not know of any or heard of any increase in chest bone increase as a result of castration. If you have any reference of this please share with us. To the best of my knowledge that is not a effect of castration.

Sorry if I may have confused you. Castration leads to that the ribs grow unusually long. Because of this, the castrati singers boasted unrivaled lung power.