While there are a lot of potential causes of constipation, a fecal impaction is one of the most common. Basically a blockage in your colon that does not allow waste or feces to pass from your body in a timely fashion, a fecal impaction causes constipation and even greater medical issues when left untreated. Over time, hundreds of layers of this compacted feces may form making chronic constipation problems more and more likely. The best method for preventing blockages and the constipation pain associated with them is to flush the gastrointestinal tract with a colon cleanser. An all natural bowel cleanser will remove the compacted feces and thus help prevent constipation problems in the future.