There are more reasons for a small amount of black blood to appear again after 3 years of menopause, which may be related to acute cervicitis, cervical cancer, endometrial cancer and other reasons.
1. Acute cervicitis: due to mechanical stimulation or injury, chemical stimulation, vaginal flora disorders and so on. It causes inflammation of the cervix, cervical congestion, edema, and brittle mucous membrane of the cervical canal, which easily induces bleeding.
2. Cervical cancer: this is a malignant tumor originating from the cervix, mainly related to the persistent infection of high-risk human papilloma virus, which may cause vaginal bleeding, accompanied by vaginal discharge, tumor compression and other symptoms.
3. Endometrial cancer: it is related to the continuous stimulation of estrogen antagonized by progesterone and heredity, and mainly manifests as postmenopausal vaginal bleeding, which is usually small in amount.
There may be other reasons for the small amount of black blood after 3 years of menopause. It is recommended that the patient should consult the doctor in time, complete the relevant examination, clarify the reasons under the guidance of the professional doctor, and target the treatment so as to avoid delaying the condition.