Abstract: Objective: To explore the value of hysteroscopy combined with B ultrasonics for patients with difficult intrauterine devices(IUD) removal.Methods: One hundred and twenty-five cases with difficult IUD removal by traditional methods were performed hysteroscopy and B ultrasonics to verify the position of IUD.After precised location,the IUD were taken out through vagina or abdominal cavity successfully.Results: The hysteroscopy and B ultrasonics showed that 49 IUD were in normal position,41 IUD were partly incarcerated,28 IUD were fragment and residual,6 IUD were distorted and 1 IUD was in abdominal cavity.One IUD was taken out through abdominal cavity and the other 124 IUD were taken out through vagina.Conclusions: It is effective and safe to take out IUD with the aid of hysteroscopy and B ultrasonics.