Blood clots

If there is no reason found for a pulmonary embolism then how do i know how to prevent it from reoccurring? There are so many variables that could have caused it and i don't want to be on blood thinners the rest of my life.. I'm not sure who to ask this question to but i guess the general question is, if you can't find a specific reason for a pulmonary embolism to have occured then how do you know how to prevent another one from happening? 2nd question, is 81mg of aspirin enough to prevent a future blood clot if there is no known reason for the first one to begin with?

[Dr. Kokil Mathur]

Hi!
Well, to answer your second question first, if your INR are within the required limits then low dose aspirin may be effective enough. It is difficult to predict if you will have a blood clot in lung again or not. To reduce the risk, you must exercise regularly, keep weight, blood pressure and cholesterol under control, regularly check your PT and INR levels and keep in touch with your doctor for regular check ups. Please also discuss this with your treating doctor. Hope this helps. Take care!

The medical advice given should not be considered a substitute for medical care provided by a doctor who can examine you. The advice may not be completely correct for you as the doctor cannot examine you and does not know your complete medical history. Hence this reply to your post should only be considered as a guiding line and you must consult your doctor at the earliest for your medical problem.