Impaction of the Colon

Constipated? It could be the result of fecal impaction. When your colon is impacted, your feces become dry and won’t budge, making it hard to excrete from your body. Impacted feces block the way for new waste to leave the body, causing it to back up. Fecal impaction can develop into more serious problems later on and should not be ignored! If you are constipated or having inconsistent bowel movements you should start taking steps to start solving the problem. Some of these steps may include cleansing, enemas, or colon hydrotherapy (colon irrigation).
http://www.healthline.com/health/fecal-impaction#Overview1