All bleeding that occurs after menopause is considered abnormal. Menopause is defined as not having any bleeding for 12 months after the last menstrual period, according to The Women’s. Postmenopausal bleeding can be a minor health issue or an early sign of a serious disorder or disease.
About 90 percent of the cases are related to a harmless condition, says To Women’s Health. Approximately 60 to 80 percent of postmenopausal bleeding cases are usually caused by atrophic vaginitis, inflammation of the vaginal epithelium triggered by its shrinking and thinning. Other possible causes are endometrial or cervical polyps and endometrial hyperplasia. In about 10 percent of postmenopausal bleeding patients, the cause is endometrial cancer, which is why it is most important to see a doctor for immediate treatments.