Table 1. Risk Factors of the Development of Deep Vein Thrombosis.

Inherited causes

Factor V Leiden mutation

Prothrombin gene mutation

Protein C, S deficiency

Antithrombin deficiency

Acquired causes

Motion restriction: trauma, immobilization, surgery (especially, orthopedic)

Hormonal effect: pregnancy, use of oral contraceptives, hormone replacement therapy

Myeloproliferative disorder, antiphospholipid syndrome

Placement of central venous catheterization

Anatomic risk factors

May-Thurner syndrome

IVC abnormality: agenesis, hypoplasia, and malformation

IVC = inferior vena cava