Hi Ying Ying,
I am pleased you enjoyed the webinar,
For me, if it is a small to moderate left sided varicocele I probably would not bother,
But if it is right sided, bilateral or a larger left varicocele I would do the extended examination including a left testicular vein study, nutcracker etc.
Small left sided varicoceles are really common and any sinister pathology would result in a larger varicocele.
Steve.