I found out later (via a comedian's spiel, of all things!) about an orchidometer - a physical representation of the testes. The commedian told us he had 'spaznuts' and one of the reasons why was because of the small testes. I went 'ah, so that's how our FS knew just by looking!'
hee, hee the urologist we visited showed us the lovely visual representation he had..... it was called 'the rosery' a selection of egg shaped balls that increased in size along the string all hand crafted out of native Tasmanian timbers....DH was pretty devestated to know that his testes had never developed past the stage of an infant.
Pretty chuffed now though as he had an operation to remove both testes and all of the nerve endings as he was in constant pain and now has testes the right size for a man his age (silicone prosthesis) who knew you could get prosthetic nuts???????