Flushing in this manner is no more dangerous than waiting for the stones to get stuck on thier own. You can flush and have the possibility of improving your liver health or you can do nothing and have an even greater chance of problems down the line. It is worth the minimal risk to me. I have flushed 15 times without any problems. Since my health has been improving I can't go without recommending someone try it. At worst you end up in the hospital. You're more likely to end up in the hospital if you don't do anything. Those stones aren't going away on thier own. You have to get them out either by the blade or the flush if you want to improve liver/gallbladder function. You have a risk with surgery too - so weigh your options.