Research has found that unresolved traumas and losses are positively correlated with addiction. This project aims to examine the relationship between the number of unresolved traumas and losses on the drug of choice of mothers with substance use disorders. # mothers with substance use disorders were administered the Adult Trauma Questionnaire (ATQ) and the Addiction Severity Index (ASI). The ATQ measured the number of unresolved traumas and losses, and the participants’ drug of choice was measured using the ASI.