haemophilia vs blood disease

haemophilia and blood disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
haemophilia	Yes	No	No	No
blood disease	Yes	No	No	No

As nouns, blood disease is a hypernym of haemophilia; that is, blood disease is a word with a broader meaning than haemophilia:

haemophilia: congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son
blood disease: a disease or disorder of the blood

Other hypernyms of haemophilia include blood disorder, sex-linked disorder.

haemophilia (noun)	blood disease (noun)
congenital tendency to uncontrolled bleeding; usually affects males and is transmitted from mother to son	a disease or disorder of the blood