text: isn't it true that when a male lion is castrated it loses its mane?   no. when you neuter a dog, does he lose his hair?  ps deprivation of testosterone does not cause hair to fall out, even hair as in a secondary sexual characteristic. do your homework,tk.  pss. just because you say so does not make it true, young lady. e-mail me that proof, or post it here, now.  psss> bird girl, i may relent, but you have to show me corroborating articles ( scientific ) to the one i read.