The results of patients diagnosed with VWD type 3 were as follows: FVIII—C 5–16%, median of 10.5%; VWF—Ag 0.5–6%, median of 3.7%; VWF—Ac 0.5–19%, median of 4.05%; VWF—CBA 6–27%, median of 16.5%. This evidence concerns the gene VWF and von Willebrand disease 3.