Factor V Deficiency, also known as parahemophilia, is related to factor v and factor viii, combined deficiency of, 1 and thrombophilia due to activated protein c resistance. An important gene associated with Factor V Deficiency is F5 (Coagulation Factor V), and among its related pathways/superpathways are Metabolism of proteins and Response to elevated platelet cytosolic Ca2+. Affiliated tissues include skin and whole blood, and related phenotypes are epistaxis and joint hemorrhage