What is postmenopausal bleeding? What can cause postmenopausal bleeding? After the age of 40, women enter the perimenopause, commonly known as menopause, when ovarian function gradually declines, leading to menstrual disorders, and finally ovarian failure and permanent cessation of menstruation, called menopause. The average age of menopause for women in China is about 50 years old. Vaginal bleeding after menopause is called postmenopausal bleeding, and the following causes are common: 1. Malignant tumors of reproductive organs The most common one is endometrial cancer, which accounts for about 80% of malignant lesions, others are cervical cancer, ovarian cancer, fallopian tube cancer, vulvar and vaginal tumors, etc. 2. 2, benign lesions of reproductive organs such as fibroids, endometrial polyps, cervical polyps, etc., and some inflammatory lesions such as endometritis, senile vaginitis, etc. 3, taking drugs or health care products Such as some elderly women take estrogen, progesterone drugs, or health care products containing such hormones cause bleeding.