Related Experiment Video
Updated: Feb 12, 2026

Taste Exam: A Brief and Validated Test
Published on: August 17, 2018
Taste impairment in chronic rhinosinusitis
Florence Othieno1, Rodney J Schlosser1,2, Nicholas R Rowan1
1Division of Rhinology and Sinus Surgery, Department of Otolaryngology-Head and Neck Surgery, Medical University of South Carolina, Charleston, SC.
Taste dysfunction affects 28% of chronic rhinosinusitis (CRS) patients, correlating with male gender, smoking history, and older age. This gustatory loss did not correlate with olfactory dysfunction or disease severity.
Area of Science:
- Otolaryngology
- Neuroscience
- Quality of Life Research
Background:
- Chronic rhinosinusitis (CRS) patients frequently report smell and taste disturbances.
- Objective assessment of taste dysfunction in CRS has been lacking.
- Understanding taste impairment in CRS is crucial for comprehensive patient care.
Purpose of the Study:
- To objectively assess taste dysfunction in CRS patients.
- To determine the correlation between taste and olfactory dysfunction.
- To evaluate the impact of taste dysfunction on quality of life (QOL) and identify influencing clinical factors.
Main Methods:
- Prospective enrollment of 68 CRS patients.
- Validated taste strips for assessing sweet, sour, salty, and bitter perception.
- Olfactory testing (Sniffin' Sticks) and endoscopic evaluation (Lund-Kennedy, OCES).
Main Results:
- Prevalence of dysgeusia (taste dysfunction) was 28% in CRS patients.
- Taste scores were significantly lower for sour stimuli.
- No correlation found between taste and objective olfactory metrics or CRS severity.
- Taste scores positively correlated with younger age, female gender, and non-smoking status.
Conclusions:
- Taste dysfunction is prevalent in approximately 28% of CRS patients.
- Gustatory loss in CRS is associated with male gender, smoking history, and older age.
- Taste dysfunction in CRS is independent of olfactory dysfunction.
Related Concept Videos
The Physiology of Taste
The Tongue and Taste Buds
Conditioned Taste Aversion
A notable characteristic of conditioned taste aversion is that it often requires only a single...
Taste Buds and Receptors
Factors Affecting Renal Clearance: Renal Impairment
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
Chronic Pharyngitis
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...

