I had one about 3 months ago. I do have cancer(multiple myeloma) mine started in my leer leg. Had 3 clots total one in calve one in groin and a pe in the right lung. Mine could be caused by cancer or the meds im on. I’m currently on xrelto. Clots are gone but I’m guessing I’ll be on thinners until im off the meds and cancer gets better.