Survey on Menstrual Symptoms, Health Related Quality of Life and Work Productivity in Patients Suffering From Pain During Menstruation (Dysmenorrhea) in Japan

Female patients with a diagnosis of dysmenorrhea will be enrolled after the decision for treatment with LEP or Non-LEP has been made by the physician. Patients who have been prescribed LEP or Non-LEP for a medically appropriate use will be eligible to be enrolled. Indications and contraindications according to the local market authorization should be carefully considered. Evidence of assessment of all eligibility criteria by the patients, as well as enrollment of a patient in the study should be documented in database of M3. Inclusion Criteria: Patients who meet all the inclusion criteria will be enrolled in this study. * Patients between the ages of 16 and 39 * Patients diagnosed with primary or secondary dysmenorrhea by gynecologists * Patients who can visit ob/gyn clinics or hospitals every 6 months to have consultations with gynecologists for treatment of dysmenorrhea * Patients who plan to be treated with drug for dysmenorrhea after enrollment in this study * Patients who are currently on Non-LEP therapies will be eligible for LEP cohort\*\* * Patients who can access the website to complete the questionnaire using mobile communication equipment such as mobile phones or tablets * Patients who submit an informed consent on the website before the start of this study Exclusion Criteria: Patients who meet any of the exclusion criteria will not be enrolled in this study. * Patients who have taken LEP for dysmenorrhea in the last 2 months before enrollment\* * Patients with mental disorders such as depression, severe infectious diseases, or malignant tumors * Patients who do not meet the inclusion criteria. Patients with contraindications for LEP or COC are as follows: * Women who have a predisposition to hypersensitivity to the ingredients of this product * Breast cancer patients * Patients with undiagnosed abnormal genital bleeding * Patients with thrombophlebitis, pulmonary embolism, cerebrovascular disease, coronary artery disease, or a history of the same * Smokers over the age of 35 who smoke more than 15 cigarettes a day * Patients with migraine with antecedents (flashing lights, star-shaped flashes, etc.) * Patients with valvular heart disease complicated by pulmonary hypertension or atrial fibrillation and with a history of subacute bacterial endocarditis * Diabetic patients with vascular lesions (diabetic nephropathy, diabetic retinopathy, etc.) * Patients with thrombotic predisposition * Patients with antiphospholipid antibody syndrome * Patients with major surgeries of 30 minutes or more, within 4 weeks before surgery, within 2 weeks after surgery, and in patients with long-term rest * Patients with severe liver damage. * Patients with liver tumors * Hypertension (except for patients with mild hypertension) * Otosclerosis * Patients with a history of jaundice, persistent pruritus, or herpes pregnancy during pregnancy * Women who are pregnant or who may be pregnant * Breastfeeding women under 6 months of age * Patients taking contraindicated drugs for LEP or COC