The Arabic physician Albucasis (1013-1106) also described a family where males died after trivial injury. First descriptions The first modern description of Hemophilia is attributed to Dr. John Conrad Otto, a physician in Philadelphia, who in 1803 published a treatise, entitled "An account of a hemorrhagic disposition existing in certain families." He clearly appreciated the three cardinal features of Hemophilia: an inherited tendency of males to bleed. Otto traced back the pedigree of the family he studied to a woman who had settled near Plymouth, New Hampshire, in about 1720
However, the first use of the word "Hemophilia" appears in an account of the condition written in 1828 by Hopff ("Über die haemophilie oder die erbliche Anlage zu todlichen Blutungen"), a pupil of Schönlein at the University of Zurich. Hemophilia B was only distinguished from the more common type in 1952, and is often referred to as "Christmas disease" after the surname of the first child reported with this condition.