Adenomyosis can cause dysmenorrhea, excessive menstruation, and infertility. Its etiology, diagnosis, and treatment are extensively described online and will not be repeated here. Hysterectomy is the ultimate option for the radical treatment of adenomyosis in patients with a large uterus and an older patient without fertility requirements. For patients with a small uterus, a young age, no fertility requirements but who want to preserve the uterus, some patients can choose hysteroscopic endometrial resection + intrauterine placement of mannorrhea to achieve a more desirable treatment effect.