Disorders of olfaction

The following are disorders of olfaction:


 * Anosmia - lack of ability to smell
 * Cacosmia - Neurological disorder in which normally pleasant smells are perceived as disgusting.
 * Hyposmia - decreased ability to smell
 * Phantosmia - "hallucinated smell", often unpleasant in nature
 * Dysosmia - things smell differently than they should
 * Hyperosmia - an abnormally acute sense of smell
 * Olfactory reference syndrome