The main purpose of this study was to examine the relationship between adult attachment, denoted as mental representations of childhood experiences, and social relations. A secondary purpose was to examine the impact of prematurity on attachment and social relations in adult age. The study is part of a larger longitudinal study carried out by professor Karin Stjernqvist and Anne-Li Hallin, candidate for the doctorate, at the Department of Psychology, Lund University. Participants of the present study were 30 individuals randomly selected from the larger study. Of these, 16 individuals were premature born and 14 individuals were full-term born.