Overall, the current state of research shows that sex doll owners (so far, the majority are men) and their uses are diverse and that sex dolls can be associated with negative and positive effects. Likewise, the available empirical studies with sex doll owners indicate that they do not only regard and treat their dolls as “sex” dolls, but sometimes also as “love” dolls or social companions. A clinical case study explained how living with a doll helped a divorced man to overcome relationship trauma and get ready to approach real women again. Psychological theories that can explain the human-doll relationship are, among others, the theory of transitional objects or the theory of parasocial interactions and relationships usually applied to media personas.