Deep venous thrombos. Deep venous thrombosis can affect any body health in several ways the most commonly it can cause painful swelling of the extremity, post phlebitic syndrome. It can lead to pulmonary embolism which can cause pulmonary hypertension. If not careful about taking your medication, it can also cause sudden death.
Could be several. As dr. Rustagi said, post thrombotic syndrome (pts) is a possibility. Although the most immediate concern is to prevent a pulmonary embolism and possible death, the more long term concern is to make sure that your risk of post thrombotic syndrome is decreased. Wearing knee high, 30-40 mm hg compression stockings daily for 2 years after a DVT decreases your risk of pts by 50%.