there are few reasons for a n assymetry in the testicles apart of a normal anatomical variation.
I f you have any signs of infection, a solid mass lesion or any fluid within the scrotal sac, these may require surgical treatment
. since your ultrasound
of the scrotum
is normal, i would think that there is no cause to worry and you can leave it alone. I f you think there has been a significant change in size since then, you may get a repeat ultrasound of your scrotum done
Dr Vineet Malhotra