ABSTRACT This prospective study explored whether keeping a major secret, self-concealment (i.e., the predisposition to keep secrets), and social support at Time 1 predicted symptomatology levels 9 weeks later (Time 2) among a sample of 86 undergraduates. The results showed that the process of keeping a secret actually predicted fewer symptoms, whereas the personality variable of self-concealment predicted more symptoms at Time 2, even when the analyses controlled for social support. However, the predictive effects of both secret keeping and self-concealment were wiped out when the analyses statistically controlled for initial symptomatology, which was positively linked to self-concealment from the outset. These findings challenge conventional wisdom about the dangers of keeping a major secret and suggest that, instead, the kind of person who is secretive simply might be more vulnerable to symptoms.