Bleeding a few hours after intercourse may be related to vaginal inflammation, cervical polyps, vaginal wall damage and other reasons, which need to be clarified before taking appropriate measures. 1. Vaginal inflammation: when a woman suffers from vaginitis, the vaginal mucosa will become fragile under the stimulation of inflammation, and contact bleeding will occur during sex. You can go to the hospital to do the examination of vaginal secretions, according to the results of the examination to clarify the type of vaginitis, and then targeted medication. 2. Cervical polyps: Cervical polyps grow on the surface of the cervix and are connected to the vagina, which are fragile due to inflammatory stimuli, and can cause bleeding when touched during sex. You can go to the hospital for gynecological examination and remove the polyp through surgery, usually with a good prognosis. 3. Damage to the vaginal wall: If sex is too intense, excessive friction can cause damage to the vaginal wall, which can also lead to vaginal bleeding. Sexual intercourse should be prohibited in the near future, and attention should be paid to the local hygiene of the vulva to keep it clean, and a light diet should be taken to avoid infection. In addition, cervical columnar epithelial ectasia, ovulation and so on may cause bleeding, need to do relevant examination to clarify the cause before the next step of treatment.