After being mekayem pru urvu, I would like to think that genetic testing of all couples, for all prevelent diseases (jscreen), should be recommended.
So if someone tests positive, they shouldn't have more children??
This has a lot less to do with
passing on a predisposition to cancer than
having a predispositon to cancer.
Anyone being tested has to think about what they might do if they test positive.
Noone actually expects a positive test result.
Increased testing. Preventive, preemptive removal of, so far healthy, body parts at great risk of developing cancer.
That's when you talk to a doctor sith your LOR.