Inclusion criteria included uterine length <12 cm, FSH level > 40 IU/L, normal Pap smear & benign endometrial pathology. Exclusion criteria included active form of PID, uterine scars, uterine malformation, uterine organic lesions (e.g., fibroids, polyps & Adenomyosis) & previous history of endometrial ablation. In addition, patients seeking fertility preservation, suffering coagulopathies or receiving anticoagulant treatments were excluded.