When an error has occurred, many physicians choose their words carefully—failing to explicitly describe the error, acknowledge responsibility, or express sympathy to patients. This in part occurs because training in error disclosure is not a standard component of medical school or residency curricula. This review found that when implemented, error disclosure training generally resulted in improved knowledge and self-reported comfort with the disclosure process. However, few studies assessed whether training led to real-world behavior change. A difficult case of error disclosure is discussed in an AHRQ WebM&M commentary.