Vaginal bleeding in women during non-menstrual periods is often caused by the following reasons: first, trichomoniasis, which causes a large number of bleeding spots in the vaginal mucosa, so it can manifest as blood in the discharge; second, inflammation of the cervix, such as localized polyps in the cervix due to the relatively brittle tissue, which causes capillary rupture and vaginal bleeding. In addition, local lesions of the cervix can also cause vaginal bleeding, such as cervical cancer. Third, lesions of the endometrium, such as endometrial inflammation, endometrial polyps, endometrial atypical hyperplasia and endometrial cancer, can cause vaginal bleeding. Fourth, pelvic tumors, such as uterine fibroids and ovarian tumors, can also cause vaginal bleeding. Therefore, if you find vaginal bleeding during non-menstrual period, you should go to the hospital for detailed examination. Clinically, vaginal bleeding can also occur if there is coagulation disorder or thrombocytopenia, so a detailed examination is recommended before giving medication.