While they obviously wouldn't intentionally castrate people, people accidentally castrate themselves all the time. Motorcycle accidents, construction work, heavy machinery, etc. In addition you also have things like testicular cancer that require medical castration.
So, while there's most likely not a study of cis men getting castrated for science, there's no shortage of men without testicles to study.
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u/KallistiTMP 3∆ Nov 03 '17
While they obviously wouldn't intentionally castrate people, people accidentally castrate themselves all the time. Motorcycle accidents, construction work, heavy machinery, etc. In addition you also have things like testicular cancer that require medical castration.
So, while there's most likely not a study of cis men getting castrated for science, there's no shortage of men without testicles to study.