I am 56 year old male.  When I was 53 I had a Biopsy done due to High PSA's.  Results were negative.  Aproximately four months post-biopsy I developed heavy bleeding with numerous clots.  This continued off and on for almost one year.  Clots became so heavy I went to the ER twice due to being completely blocked.  I finally had Holmium Laser enucleation done. Bleeding stopped after about 2 months and I have not had bleeding again for almost 9 months.  Bleeding has now started up again. When bleeding I MUST frink at least 3 liters of water everyday or huge clots will develope.  Bleeding is usally triggers because I sit too long, as in a long trip in a car or sitting in a desk chair for more than 8 hours a day.  I think the vessels in my prostate get inflamed and burst causing the bleeding.  The inflamation comes from direct pressure of sitting for long periods of time.  I also take Plavix, fish oil and baby aspirin due to getting two caridac stents about 6 years ago.  While these meds may make the bleeding last a little longer the trigger, in my opinion , is the pressure placed on the prostate during long drives and/or sitting in chairs.