Ageusia is another term for taste impairment or loss. It can be caused by many factors. Some of the most common include smoking and it can also be a temporary side effect of many cancer treatments, particularly those being treated for mouth and throat cancers.
A Answers (2)
American Dental Association answered
Ageusia, the inability to taste, can be caused by a variety of factors. A dry mouth is the most common cause of this condition. A dry mouth may be caused by smoking (particularly with a pipe), allergies, or some medications, including certain antibiotics, blood pressure medicines, antihistamines and antidepressants. Not having enough of certain metals in the body, especially copper, zinc, or nickel, may also cause ageusia. Other causes of this condition can include burns to the tongue, dental problems, brain trauma or injury, depression, and certain diseases. After the age of 50, a person's sense of taste weakens since there are fewer taste buds.