 Exhibitionistic disorder is a condition marked by the urge, fantasy, or act of exposing one’s genitals to non-consenting people, particularly strangers; and voyeuristic disorder is a sexual interest in, or practice of, spying on people engaged in intimate behaviors like undressing or sexual activity.While similar terms may be used loosely to refer to everyday activity, these feelings and behaviors are a indicative of a mental disorder only if they interfere with normal functioning or well-being, or involve causing discomfort or alarm to others.Much rarer is gymnophobia, an abnormal and persistent fear of nudity.