Queen Victoria was a carrier of Hemophilia and then it was passed to her children who were royal family’s members in Russia, Germany and Spain.
Nicholas II (Russian) suffered from Hemophilia; he was a descendant of Queen Victoria.
Hemophilia is a blood disorder in which blood does not clot properly.
Bleeding disorders can be due to blood vessels defect, the coagulation or the blood platelets. A patient having Hemophilia may bleed continuously for an extended time than a healthy person after a surgery or an injury.
The blood coagulation is a process that changes the blood from liquid state to the solid state and it involves many clotting factors. This mechanism produces fibrin which combines with the platelet to stop the bleeding.
When coagulation mechanism is not effective, the blood does not clot and the bleeding continues.
Patients with Hemophilia A or B have genetic defects in them that prevents the blood clotting factors.