We say it varicocele. And if it's giving pain , it's better to get it operated.
However , before operation , he must get an ultrasound of scrotum as well as semen test (with a gap of 3-5 days in intercourse).
Thanks & Best Regards ,
Dr.Muhammad Tahir Bashir Malik FCPS(Urol),FRCS(Urol)
Assistant Professor Urology
University Medical & Dental College,
Madina Teaching Hospital,Faisalabad