Adenomyosis occurs most often in menstruating women aged 30-50 years. About half of the patients have a combination of fibroids and about 15% have a combination of endometriosis. About 30% of patients with adenomyosis do not have any clinical symptoms. The most common symptoms are increased menstrual flow, prolonged periods, and progressive dysmenorrhea that worsens every year. The pain is usually located in the lower abdomen and usually starts one week before menstruation and disappears on its own after menstruation. If the menstrual flow is too heavy for a long time, the patient may become anemic. If the vaginal bleeding is incessant for a long time, it may lead to reproductive tract infections and may cause infertility in young, infertile people. A gynecological examination in the hospital may reveal a uniformly enlarged uterus or a limited nodular bulge with firmness and tenderness, especially during menstruation, and a B-mode ultrasound examination may reveal irregular echogenic enhancement of the implanted endometrium in the myometrium, usually with thickening of the posterior wall. If menstruating women have secondary progressive dysmenorrhea with menstrual abnormalities, they should consult a gynecologist for prompt diagnosis and treatment.