Has anyone ever been cured of hemophilia or the genetic abnormality that causes it?
Also, has a hemophiliac or someone who carries the gene ever had a child that wasn’t a hemophiliac AND didn’t carry the gene?
Technically, hemophilia can be cured through a liver transplant, but the risks involved in the surgery and the requirement for lifelong medications to prevent rejection of the new liver may outweigh the benefits – which is why it’s never done.
If you so happen to be a hemophiliac and need a liver transplant then that’s the only way it would happen.
Doctors/medics/researchers are aware, which is why research is done in this area, but not to that extreme… for example, transplanting liver cells, although THIS is still only in research phase.
As for your second question.
If an affected male has hemophilia, he WON’T pass it to his son, but will pass the gene to his daughter. (I can’t say that I’ve ever heard of an affected male not passing the gene to his daughter.)
And as for a woman who carries the gene, she has a 50% chance of passing it to her children.