Characteristics of preschool-age children who engage in problematic sexual behaviors with siblings.

Background: Problematic sexual behavior (PSB) between siblings can be a form of sibling sexual abuse (SSA). A notable gap in research are studies examining PSB among preschool-age children with siblings.

Objective: This study examined the impact of child maltreatment, exposure to family sexuality, and use of coercive sexual behavior on preschool-aged children PSB with siblings and with nonsiblings.