Abstract
Uterine adenomyosis is a common disease in women of reproductive age that causes dysmenorrhea, abnormal uterine bleeding, infertility, and obstetric complications. Rarely, adenomyosis can lead to abscess formation, which is refractory to antibiotics and occasionally requires surgical treatment, such as hysterectomy. However, hysterectomy should be avoided in patients who seek to preserve fertility. Herein, for the first time, we report two cases of uterine adenomyosis with abscess formation during assisted reproductive procedures that were successfully treated with adenomyomectomy, thereby preserving fertility. A history of repeated intrauterine procedures and infections was crucial in making an appropriate preoperative diagnosis. Adenomyomectomy can be an effective treatment for adenomyosis associated with abscess in patients who wish to preserve fertility.