Disorder	Description
Taste
Ageusia	Complete loss of ability to taste
Dysgeusia	Distorted taste perception (triggered by a taste stimulus)
Hypogeusia	Reduced ability to taste
Phantogeusia	Gustatory hallucination (occurs without a stimulus)
Smell
Anosmia	Complete loss of ability to smell
Hyposmia	Reduced ability to smell
Parosmia	Distorted odor perception (triggered by a stimulus)
Phantosmia	Olfactory hallucination (occurs without a stimulus)