Luckily he posted about it, and received replies to get himself checked out immediately, since " beta human chorionic gonadotropin, the hormone detected by pregnancy tests in pregnant women, can also signal some types of testicular cancer."
It did, he did, and he’s getting treated!
It must have been a Doper who clued him in to this!
If the gentleman is lucky they only have to remove one testis. Sometimes, though, they must remove both.
At least in some cases collection and preservation of sperm is possible prior to treatment. (This was offered to a co-worker of mine who was diagnosed in his mid-20’s, but between being more concerned with continued survival and lack of funds for such a thing he did not take advantage of that option.)
In the event total removal of testes, after treatment hormone supplements can be supplied to enable continued sexual function and retention of secondary sexual characteristics. There are also cosmetic procedures to restore a normal or near normal appearance to the scrotum.
Seriously, that’s an unusual way to diagnose something like that, but I’m very glad to hear the gent in question got the necessary treatment, and that your co-worker also fared well.