Exactly my thinking too. From what I have read, it is only by perserverence, self study and luck that people have made any progress. In two or three cases, people saying that it took 20 doctors before they found a good one who would listen to them and could help.
Someone recommended to me to try University Hospitals, where they are more experienced and do research. Also finding a specialist who is also a researcher and has some curiosity.
I have wondered if it is a small problem that caused a chain of events - like derailing a train. But most sources say loss of testicle size is not generally reversible, though some function can be restored.
Doctors in general seem close minded and stubborn, only following what they have been taught, and not even using logic to think for themselves.