Abstract
The usual counseling situation with a hemophilic family is that a sister or cousin or niece of a hemophilic patient wishes to have a child. Knowledge of the suffering and expenses incurred by the affected relative has caused indecision and frustration. She wishes to know whether she is a carrier, and if she is a carrier, whether she can avoid having a hemophilic son. The latter problem is more easily dealt with than the former, at least scientifically, since the sex of an unborn child can be determined by amniocentesis and the birth of males simply avoided. But deciding whether . . .