Ageusia is a rare disorder which is characterised by the loss of taste i.e. a person suffering from ageusia cannot detect different kinds of taste like sweetness, saltiness, bitterness and umami or the savoury taste. In many ways, ageusia is like blindness and deafness which are also caused due to the loss of an important sensory faculty. While complete ageusia is extremely rare, people commonly suffer from different kinds of taste disorders. Significantly, the loss of taste is closely related to the loss of smell. Therefore, if an individual is finding it difficult to differentiate between tastes, it might be caused by a smell disorder in some cases.