Hemophilia is a rare inherited blood disorder that affects the ability of blood to clot. People with hemophilia often bleed for longer than usual after an injury or surgery.

Hemorrhagic disease of the newborn is a bleeding disorder that occurs in newborns due to a deficiency of vitamin K.

Von Willebrand disorder (VWD) is a common inherited bleeding disorder caused by a deficiency of von Willebrand factor (vWF), a protein that helps blood clot.