A colon cleanse is performed by individuals who want to remove the dried, trapped waste from their colons and to detoxify their bodies to make themselves healthier.  A long list of symptoms is associated with a toxic colon including migraines, digestive problems, menstrual irregularities, acne, lack of energy and mental lethargy.  Some of these symptoms may not be caused by a toxic colon, however, and may not be alleviated with a colon cleanse.