Olfactory Reference Syndrome (ORS) is a rare syndrome characterized by excessive mental activity related to the fact that they secrete a body odor that is uncomfortable for others, social avoidance, and self-isolation because of embarrassment and intense distress due to this odor. According to the case reports in the literature, it is frequently seen in young men. In this case report, a 66-year-old female patient admitted with the complaint of bad odor in her mouth was discussed.