Last week I finished my second dose of HDR Brachytherapy at Mayo in Rochester. I was offered the 5 sessions of proton therapy or the HDR Brachythearpy. In my case the RO at Mayo felt these were my best options. A RO that I previously met with felt the seeds created a greater risk of rectal burn. I am not sure if this was because of the location of my cancer or if this is just what he had experienced. I chose the HDR Brachytherapy becuase I could have this done in 2 visits 2 weeks apart or spend more time in Rochester getting the proton beam. My research showed that recurrence rate is very low with HDR (5% or less), also the acute urinary symptoms resolve within a couple of weeks. From what I read urinary symptoms with the seeds could last up to 6 months. I have seen comments on this site where the seeds at times can move out of the prostate, which typically does not create a problem, but I would be uncomfortable with these things floating around.