Nothing.
It is quite normal to have one larger testicle. It is estimated that in about 65% of men the lower hanging testicle is the left one. This is due to differences in the vascular anatomical structure on the right and left sides.
While having one testicle that is larger than the other could signal a hernia, it might also be nothing at all. Many males find that their testicles are not exactly the same, with one being larger than the other or one hanging lower than the other.
In most cases the doctors would put a 'falsie' in the scrotum. As long as the other testicle is healthy, it would not prevent reproduction.
Get used to it, it happens in life.
Many males have a testicle , which is larger then the other one.
the other call for testis is testicle
It shouldn't be, the "testicle tubes" on either side should be the same.
Yes
Speedo?
No, one testicle always hangs lower than the other. That's normal.
They will no longer talk to each other
Almost all men have testicles of different sizes; this is completely normal. However, if one testicle is strikingly larger than the other, or if you notice any kind of change in size in either testicle, see a doctor ASAP.