If the vagina bleeds, it is common for the following reasons: 1. chronic inflammation of the cervix: due to inflammation of the local mucosa of the cervix, the tissue is brittle, so capillary rupture will result in the phenomenon of blood in the leukorrhea. 2. cervical polyps: due to chronic inflammation, local tissue hyperplasia will lead to the formation of redundant organisms, which are cervical polyps, cervical polyps are mainly due to inflammatory reaction, clinically, they often appear as blood in the vagina. The cervical polyp is mainly due to inflammatory reaction and often results in blood discharge from the vagina. 3, local cervical lesions: such as cervical cancer, cervical cancer screening is recommended clinically. 4, endometrial lesions: as endometrial lesions may also lead to blood in the leucorrhea, the following tests are recommended, including gynecological examination, cervical cancer screening and ultrasound examination to understand the pelvic cavity.