What is the reason for menstruation after two years of menopause?

Patient's question:

It has been three days since the menstruation started

Doctor's answer:

The causes of postmenopausal bleeding include: senile vaginitis, chronic cervical, endometritis, functional uterine bleeding, uterine fibroids, pelvic inflammatory disease, etc. It is recommended to go to the hospital for a clear diagnosis and then receive symptomatic treatment.