People with adenomyosis do not have dysmenorrhea probably because the condition is not too severe. Some patients are free of dysmenorrhea symptoms. If you had dysmenorrhea before and suddenly don’t have dysmenorrhea this time, you may also have dysmenorrhea from other causes such as uterine abnormalities, pelvic inflammatory disease, etc., and these factors have been resolved. Or the symptoms of dysmenorrhea may have been relieved by the use of medications such as nonsteroidal drugs, progestin drugs, and gonadotropin-releasing hormone analogs. Adenomyosis is a common gynecologic condition that is a diffuse or limited lesion induced by the invasion of the endometrial glands as well as the mesenchyme into the myometrium, which may induce dysmenorrheal symptoms due to increased levels of prostaglandins, abnormal uterine contractions, abnormal blood supply, and excessive uterine contractions. If a patient with adenomyosis does not have dysmenorrhea, it may be that the condition is mild and the lesion is limited and has not yet caused dysmenorrheal symptoms. If the dysmenorrhea suddenly stops during this menstrual period, it may be due to other causes such as uterine abnormalities, pelvic inflammatory disease, etc. After these factors are resolved through antibiotic anti-inflammation and surgical treatment of the abnormalities, the dysmenorrheal symptoms go away but the adenomyosis still exists. In addition, adenomyosis can be manifested as progressive dysmenorrhea, heavy menstrual flow, enlarged uterus, etc., and is affected by the sex hormones in the body, the condition continues to progress, and is usually relieved after pregnancy or menopause, so it is recommended that after diagnosis, patients need to be actively under the guidance of a professional doctor to receive treatment. Do not blindly use drugs or self-judgment, so as not to delay and aggravate the condition.