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Problems with Taste

Symptoms and Diagnosis

Other people can't detect taste at all, which is called ageusia. This type of taste disorder can be caused by head trauma; some surgical procedures, such as middle ear surgery or extraction of the third molar; radiation therapy; and viral infections. More often, people with taste disorders experience a specific ageusia of one or more of the five taste categories: sweet, sour, bitter, salty, and umami, or savory.