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The distortion in the sense of taste is the only symptom, and diagnosis is usually complicated since the sense of taste is tied together with other sensory systems. Common causes of dysgeusia include chemotherapy , asthma treatment with albuterol , and zinc deficiency .
Ageusia (from negative prefix a-and Ancient Greek γεῦσις geûsis 'taste') is the loss of taste functions of the tongue, particularly the inability to detect sweetness, sourness, bitterness, saltiness, and umami (meaning 'savory taste'). It is sometimes confused with anosmia – a loss of the sense of smell.
Also known as benign migratory glossitis, experts cover the symptoms, causes, diagnosis, and treatment of geographic tongue.
"COVID tongue may represent loss of taste buds or papillae on the lining of the tongue," Dr. Mehdizadeh says. Related: The #1 COVID Symptom to Look Out For, According to Infectious Disease Experts
Another potential symptom is a metallic, acidic, salty or bitter taste in the mouth. [5] [8] The pseudomembranous type rarely causes any symptoms apart from possibly some discomfort or bad taste due to the presence of the membranes. [5] [6] Sometimes the patient describes the raised pseudomembranes as "blisters."
Loss of the white peripheral zone is thought to signify periods of mucosal healing. [9] There are usually no symptoms other than the unusual appearance of the tongue, but in some cases persons may experience pain or burning, e.g. when eating hot, acidic, spicy or other kinds of foods (e.g. cheese, tomatoes, fruit).
Poor diet can cause malnutrition and nutritional deficiencies. Deficiency of iron, B vitamins and folic acid are common causes for atrophic glossitis. Black hairy tongue - some factors thought to cause black hairy tongue are environmental, such as eating a soft diet, poor oral hygiene, smoking and antibiotic use.
Taste loss can vary from true ageusia, a complete loss of taste, to hypogeusia, a partial loss of taste, to dysgeusia, a distortion or alteration of taste. The primary cause of ageusia involves damage to the lingual nerve , which receives the stimuli from taste buds for the front two-thirds of the tongue , or the glossopharyngeal nerve , which ...