Well my husband had a swollen testicle, saw the GP, she was going to refer him immediately so being in BUPA at the time he went privately (but even so, the referral WAS immediate so would have been treated almost as urgently by the NHS I'm 100% certain)
Anyway it was epididimal cysts which were removed NP.
I also had a colleague who had one testicle removed in his 20's, when I was still in my teens, and there was most certainly no delay there either so I just reckon Nigel was bloody unlucky and not that it's the general state of the NHS either then or now.