hi raamaka, surgery is always better for varicocele
, with better results. Nowadays it can be done with 1.5 cm incision below the pubic hairline, the dilated veins are ligated under microscope to prevent any injury
to the arteries and lymphatics, with >95% success rates. Treatment of varicocele will not increase the testicular size on left side, but will help preserve current function on both sides, and prevent further deterioration. Good luck.