A girl who is not a carrier 2. A girl who is a carrier 3. A boy without hemophilia 4. Because the father's X chromosome determines the baby will be a girl, all the daughters of a man with hemophilia will be carriers. None of his sons, which is determined by the father through his Y chromosome, will have hemophilia.
Genetic counseling is available at most HTCs.
These professionals have information to help you make family planning decisions. If you have one child diagnosed with hemophilia, and you are expecting another child, it is important for your obstetrician to know that you are at risk for having another child with hemophilia. Also, some carriers may have lower than normal blood clotting activity. This testing can be done early in the pregnancy, allowing the family to plan for a high-risk delivery or to choose to end the pregnancy. If you do not want prenatal testing, arrange for blood to be drawn from the baby as soon as possible after birth.