And speaking of nuts, Dr Oz answered a question in his column about them. The writer questioned the decision by a pediatrician that (I think it was) the man's 8-month-old grandson undergo surgery to remove an undescended testicle. The man thought it should be left alone.
A buddy of mine joined the military at age 18. During the entrance physical the old "turn your head and cough" routine discovered he only had one nut in his sac. When he admitted the other had never dropped, they insisted he have it removed before he could enter basic training. During his career, it was widely known and any time you heard "Sgt. One-nut" or any derivative thereof, you knew exactly who the person was referring to.
According to Dr Oz, our balls drop down from the abdomen into the scrotum typically during the final weeks of gestation. If they are not in the ballsac at birth, then it is wise to keep watch. If they haven't moved into the proper position within 6 months, they should be brought down surgically as soon as possible. Allowing a ball to reside in the abdominal cavity can lead to all sorts of problems - fertility issues are just the beginning. The risk of ball cancer rises. If that goes untreated, well, the consequences are not pretty.
Just one more reason we need to be open and honest with our sons about their bodies. Their balls are as important as our own; their cocks are as important as our own.
As parents - as fathers - we should know if our sons are getting the boners they should,
if they're able to jack off and shoot a load without a problem,
if they're having any issues at all with the package.