Adenomyosis is caused by ectopic endometrium between the uterine walls, often due to uterine surgery, such as curettage or abortion, which can damage the endometrium and induce uterine disease, or after multiple deliveries. It can cause severe menstrual cramps and increased menstrual flow, sometimes leading to blood loss and anemia, and can affect the normal internal environment of the uterine cavity. For example, if the patient is older and does not have fertility requirements, surgical hysterectomy can be performed; if she has fertility requirements, drugs such as Daphylline can be given for a short period of time.