This study investigated concerns about privacy related to the contents of private information and reasons for desiring privacy. In a semi-structured interview, undergraduate and graduate students were asked to indicate information they desired to keep private and the reason for desiring privacy. The results indicated that nearly all participants considered that personal information should be private. Participants who were more concerned about privacy thought that more kinds of personal information require privacy. They tended to regard negative past experiences and distress as being private, and considered their expectations of hesitation of others, embarrassment, and avoiding decreased self-evaluation as their reasons for desiring privacy.