Evaluation of Diagnostic Criteria for von Willebrand Disease in Sudan

Von Willebrand disease (VWD) is the most common inherited disorder of primary haemostasis. It is very heterogeneous, both in its phenotype and genotype VWD comprises a heterogeneous group of patients in whom the clinical diagnosis is often difficult because of a considerable intra -individual phenotypic variation and limited laboratory data, bleeding and family history. Even internationally there is no consensus about diagnostic criteria for VWD