Yes, but there has to be a reason behind it, he wouldn't become sterile just like that.
nope
No. That is the definition of sterile; "not able to produce children or young"
No. Circumcision has nothing to do with fertility.
If a man practice handjob regularly during his teenage, then his sperm count is reduced to such an extent that he may become sterile.
Not with his own semen. Though if he came into contact with another man's semen (having sex with another man or even a woman who recently had sex), then the "foreign" semen could impregnate the woman.
It depends on why the man is sterile. There are many causes. If he has had a vasectomy, an operation to make him sterile, that operation can now be reversed for a majority of men, if they want to go through the hassle and expense. If a man is sterile for some other reason, there are many possible medical reasons and many possible treatments. Only a fertility expert knows all about it.
No this will not make him sterile.
You need to be around 25. If you are younger you will have kids than your man will leave you.
eat alot of vegi kids
A dishonest one.
No.
for the surgeon to begin operation his scalpel must be sterile. a man who is sterile can not have children.