StatPearls-/-ä 2024[Jan]; ä (ä): ä PMID33351420show ga
Many patients are not aware of their olfactory deficits. Therefore, olfactory testing is important. Additionally, common causes of olfactory decline create distinct patterns of olfactory deficits that are revealed through multicomponent olfactory tests. Moreover, olfactory deficits may be a warning-sign for neurodegenerative disorders or infections such as coronavirus disease 2019 (COVID-19). Thus, olfactory testing may uncover important clues of potentially dangerous conditions.