Tense anal muscles are the direct result of fecal matter remaining in the colon, especially dry fecal matter. Even though the anal muscles remain tense and the colon feels “full”, the muscles are weak and one will find excretion very difficult. Sometimes, one needs to use the fingers to literally dig into the anal opening to pick at the fecal matter and literally pick it out. The fecal matter may be hard and dry or it may be hard and moist. Usually, such fecal matter does not smell that bad but it stays in the colon and the anal muscles are too weak to push it out.