... Of course there are the 25 external beam squirts, but that's a lot less than the 40 or 45 external beam treatments. If you think about it, you will realize that Brachy radiates the cancer cells 24 hours a day, 7 days a week, so that when the cancer cells attempt to divide, the radiation is there to kill it when it is weakest. It's that simple! After the implantation, you will swear that they didn't do the procedure, it's that painless!!! My oncologist showed me the post procedure x-ray so I would believe he had done it! I was a Gleason 9 and pretty worried but now I know I got the most effective treatment there is. My cancer is no longer a part of my life. ( Do Your homework and check me out. Start with "prostatecancerfree.org" and contact me here for more info. )