My husband has just had his 4th BCG treatment. His first week he had no side effects. Second week, some burning with urination which resolved in a few hours. The third week, some burning and several bouts of diarrhea, all resolving by evening and the last all he had was diarrhea which resolved by evening. I was under the impression that he would have side effects that would worsen with each treatment. I am not looking a gift horse in the mouth but I know that when we give chemo at the hospital, it is often good to have side effects and that means that chemo is doing it's job. I know that BCG is not chemo, but his not having side effects worries me.