This study examined the prevalence of sexual dysfunction in women using intrauterine hormone-releasing systems (IUS) or copper intrauterine devices (Cu-IUDs) for contraception. The study surveyed 402 women using IUSs or Cu-IUDs who completed questionnaires on sexual functioning and psychological measures. The results showed that 33% of participants reported some form of sexual dysfunction, with increased or decreased sexual desire being most common. There were no significant differences in prevalence or type of sexual dysfunction between IUS and Cu-IUD users. Women with sexual dysfunctions had significantly higher depression scores and lower well-being and relationship satisfaction compared to women without sexual problems.