Thrombus More Condition_treatment Query Regarding DVT And Warfarin. What Actually Removes Existing Thrombus?

Query regarding DVT and warfarin. What actually removes existing thrombus? - thrombus more condition_treatment

When a person develops a DVT) (deep vein thrombosis, which was placed on heparin / warfarin. But already formed thrombus. This is the justification for the use of warfarin to further delay the formation of thrombosis? Am I right to say that warfarin does not delete the existing thrombus. The removal of the thrombus was formed, is formed of white blood cells, what happens in the coming weeks and months. Is that correct?

Thanks