Bad breath
Bad breath was the state of having malodorous exhalations.

According to Q in 2366, bad breath was one of the disadvantages to being Human. ()

The Vori believed that the breath of the Kradin "stinks of muck". ()

In 2374, after Dukat told Kira Nerys he could make things pleasant for her, she advised him to "start by doing something about your breath." ()

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Medical conditions