Cervicitis is an inflammation of the vaginal part of the cervix and the cervical mucosa. There is a large infiltration of inflammatory cells when cervicitis occurs, and the inflammation may cause erosion-like changes in the corresponding area over time. First, irregular vaginal bleeding may occur because in cervicitis, local congestion and edema of the cervical mucosa or cervicovaginal area, epithelial degeneration and necrosis, and inflammatory infiltration of the mucosa and submucosa may combine to increase the vascular fragility of the lesion, which can easily rupture and lead to vaginal bleeding. Secondly, there is also the possibility of contact bleeding, mostly after sexual intercourse or after a gynecological examination. This is because the prolonged presence of cervicitis may lead to erosive-like changes in the cervix, and when the cervix or vagina is mechanically stimulated from outside, the local erosion may bleed. Third, prolonged inflammatory stimulation of the cervix can also lead to the appearance of cervical polyps, which are rich in blood vessels and prone to rupture, resulting in bleeding. In order to prevent cervicitis bleeding, it is best to treat the cervicitis in time and pay attention to the cleanliness of the pubic area to prevent the problem before it happens.