Three years after menopause, suddenly a little red, may be related to taking certain drugs, may also be due to inflammation of the reproductive tract, gynecological tumors and other causes. 1. Taking certain drugs: some women take a lot of drugs or health products after menopause, especially health products containing estrogen, because long-term brain supplementation of estrogen may lead to endometrial hyperplasia, resulting in three years of menopause suddenly see a little red. 2. Inflammation of the reproductive tract: commonly found in senile vaginitis, women in the postmenopausal period, due to the reduction of estrogen in the body, vaginal epithelium atrophy, vaginal mucosa gradually thinning, resulting in weakening of vaginal self-purification ability, easily induced by senile vaginitis, the stimulation of inflammation may cause vaginal bleeding, thus appearing in the three years of menopause, suddenly a little red. 3. Gynecological tumors: commonly seen in uterine submucous fibroid, endometrial cancer, cervical cancer and other diseases, can lead to vaginal bleeding, which may cause women to see red suddenly after three years of menopause, and may be accompanied by abnormal leukorrhea, lower abdominal pain and other symptoms. Sudden redness after three years of menopause may also be caused by other reasons. If accompanied by obvious discomfort, you should go to the hospital as soon as possible, and after completing the relevant examinations and confirming the causative factors, you will be guided by the doctor to carry out the treatment.