What advantage does proton treatment have over seed implantation?

Boy that took quite some time. I have done the research and found out several things. You are not a candidate for Proton Therapy if you have had Radiation Therapy before in the groin area. Proton Therapy is available in a few selected centers around the country. If you opt for Proton Treatment you must live away from home for 6-8 wks. Radiation seed treatment is one day and the outcome is the same and so are the possible side effects.

@gocar1962 Proton therapy is the least invasive of the available options and produces an excellent qualilty of life with minimal side effects.