Could Fifi have had hemophilia and lack the essential blood clotting protein?

Fifi could have hemophilia, a genetic disorder that affects the ability of blood to clot properly. This condition is often caused by a deficiency in specific clotting factors—most commonly factor VIII for hemophilia A and factor IX for hemophilia B. Since hemophilia is typically inherited in an X-linked recessive manner, females (like Fifi) can be carriers of the gene mutation without necessarily expressing the disease. However, if a female inherits the defective allele from both parents, she can express hemophilia.

Thus, it is entirely possible for Fifi to have hemophilia if she receives the mutated gene from both her mother and father. The presence of hemophilia implies that she does indeed lack the essential blood clotting proteins necessary for normal blood coagulation, leading to increased bleeding and associated health risks.