Posttraumatic growth (PTG) involves personal psychological growth in response to a traumatic or very stressful event. Using theoretical guidance from Tedeschi and Calhoun's cognitive model, this study evaluated the relationship between specific individual, distress, and stress-processing factors and PTG among young adults who experienced an illness-related trauma earlier in life through a relative's serious illness. Sixty individuals with a relative with a serious illness completed measures of PTG, posttraumatic stress symptoms (PTSS), anxiety, and coping.