I never heard of stem cell treatment for auto-immune diseases at all. Got two conditions myself, I would not go for such a 'radical' treatment at this point tho

I never heard of stem cell treatment for auto-immune diseases at all. Got two conditions myself, I would not go for such a 'radical' treatment at this point though as I do not feel I suffer enough to try it out. I will read up on it though. But for know I'll just ask a question. What are the actual risks of stem cell treatment?