Factor V Leiden mutation | Myeloproliferative disorders | Cirrhosis | Post liver transplant |
Prothrombin mutation | Malignancy | Sepsis | Splenectomy |
Antithrombin III | Antiphospholipid syndrome | Pancreatitis/cholecystitis | Colectomy |
Protein C deficiency | Anticardiolipin antibody | Diverticulitis | Umbilical vein catheterization |
Protein S deficiency | Paroxysmal nocturnal hemoglobinuria | Appendicitis | Portacaval shunting |
| Hyperhomocysteinemia | Peptic ulcer disease | |
| Oral contraception pills | Inflammatory bowel disease | |
| Pregnancy/postpartum | Blunt abdominal trauma | |