Congenital afibrinogenemia is a rare, genetically inherited blood fibrinogen disorder in which the blood does not clot normally due to the lack of fibrinogen, a blood protein necessary for coagulation.[1] This disorder is autosomal recessive, meaning that two unaffected parents can have a child with the disorder.[2] The lack of fibrinogen expresses itself with excessive and, at times, uncontrollable bleeding.[3]