Here's what wiki says regarding castration both before and after puberty:
A subject of castration who is castrated before the onset of puberty will retain a high voice, non-muscular build, and small genitals. They may well be taller than average, as the production of sex hormones in puberty—particularly testosterone—stops long bone growth. The person may not develop pubic hair and will have a small sex drive or none at all.
Castrations after the onset of puberty will typically reduce the sex drive considerably or eliminate it altogether. Also castrated people are automatically sterile, because the testes (for males) and ovaries (for females) produce sex cells needed for sexual reproduction. Once removed the subject is infertile. The voice does not change. Some castrates report mood changes, such as depression or a more serene outlook on life. Body strength and muscle mass can decrease somewhat. Body hair sometimes may decrease. Castration prevents male pattern baldness if it is done before hair is lost; however, castration will not restore hair growth after hair has already been lost due to male pattern baldness.
No thanks.