After a few years of menopause, menstruation may come again due to hormonal stimulation, or it may be caused by cervicitis, cervical cancer, endometrial cancer, and so on. 1. Hormone stimulation: After menopause, the level of sex hormone in the body decreases, usually there will be no menstrual cycle, if there is a small amount of vaginal bleeding, which can disappear after 2~3 days, it is considered to be due to the low-dose hormone stimulation in the body, which results in the endometrial hyperplasia and shedding of the endometrium and then causes menstrual reversal. 2. Cervicitis: If you suffer from cervicitis, it may be manifested as contact bleeding during cervical smear examination and coitus. 3. Cervical cancer: If there is enlarged uterus, bleeding during intercourse and foul-smelling vaginal discharge, consider cervical cancer, endometrial cancer or uterine sarcoma. If menopause occurs and comes back after a few years, it is recommended to observe closely, consult the doctor promptly for any abnormalities, clarify the cause of the disease under the doctor’s guidance, and follow the doctor’s instructions for symptomatic treatment.