Ageusia sometimes confused for as anosmia, the loss of the sense of smell.
Other type of loss of taste:
- Hypogeusia - partial loss of taste
- Dysgeusia - distortion or alteration of taste
The tongue can only indicate texture and differentiate between sweet, sour, bitter, salty, and umami most of what is perceived as the sense of taste is actually derived from smell.
Causes
* Tobacco abuse
* Otologic surgery
* Drug side effects
* Anxiety Disorder
* Tissue damage to the tongue nerves
* Vitamin deficiency (Vit. B3 and Zinc)
* Neurological disorders such as Multiple Sclerosis
Symptoms
* Poor appetite
* Metallic taste
* Tongue with a white-greasy coating
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