Causes of Bleeding / Bruising - Differential Diagnosis Algorithm Thrombocytopenia - Quantitative Defect • Decreased Production • Increased Destruction • Abnormal Sequestration Disordered Platelet Function - Qualitative Defect • Congenital - Rare • Drugs (e.g. ASA) • Renal Disease Vascular System - Congenital • Connective Tissue Disorders • Hereditary TeIangiectasia Vascular System - Acquired • Steroids • Vasculitis Coagulation Proteins - Congenital • Factor VIII Deficiency • Factor IX Deficiency • Von Willebrand's Disease • Other deficiencies Coagulation Proteins - Acquired • Anticoagulation (Iatrogenic) • Liver Disease • Vitamin K Deficiency • Disseminated Intravascular Coagulation #Bleeding #Bruising #Differential #Diagnosis #Algorithm #Causes #Hematology