Posted 3/5/2014 11:51 AM (GMT -6)
Ditto Eva that once it's there, it's there. And nothing is going to make it any bigger or anything.
However, I do wonder about the healing process and how that might be impacted by vigorous exercise. I know your GI is hoping the Humira will heal the fistula, and I'd assume that if the fistula heals, there's going to be some delicate tissue in there, if that makes any sense. So I'd maybe ask your GI.