Are the qualifications for surgery written in stone?

I've been dieting since I was 10 and I'm 50 now. Of course, after the weight loss, when I began eating normally again I'd end up heavier than when I started. I am about70 lbs. overweight. Do I have to gain 30 lbs. to qualify?

We greatly appreciate your interest in helping us build our Q&A database. To discourage vandals from posting garbage, however, we require people to register before posting.