The left came down before the age of one but the right not untill I was about 13.
Later as the result of complications after a vasectomy
, I lost the left testicle. Due to the fact that I only had the right one now it was determined that I had low testosterone levels. I now use monthly testosterone injections to keep my levels up. This is done for muscle tone, bone density, as well as ED.
Considering that your testicle is healthy, you sould have no problems.