Which one does not cause deep vein Thrombosis -
Sickle cell anemia does not cause DVT. They cause vaso-occlusive crisis by plugging the microcirculation (aggregate of Sickle cell are formed in the capillaries because of hypoxia).
Oestrogen
Thrombocytosis
Paroxysmal nocturnal haemoglobinuria
Sickle cell anemia