Flushing can expel stones or just stale bile. Some folks flush to get rid of gall stones and/or avoid surgery. Some folks want to relive a congested liver or just revive themselves as part of an alternative health programme. There are a number of reasons for liver flushing. However if liver and gall stones are troublesome people keep a tally so that they know when they are clear of them. Taking an extreme laxative allows the stones to viewed, warning; this is gross to some people.