Thrombasthenia
Glanzmannâ ' s disease is a rare disorder of blood platelets, which results in easy bruising and nosebleeds.
Glanzmannâ ' s disease is caused by lack of a protein required for platelets to clump together (aggregate) normally.
The condition is congenital, which means it is present from birth.
McMillan R. Hemorrhagic disorders: Abnormalities of platelet and vascular function. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 179.