Bleeding from sexual intercourse, also known as contact bleeding, is most commonly associated with cervical lesions, such as inflammatory diseases of the cervix, intraepithelial neoplasia of the cervix, or cervical cancer. Patients need to undergo gynecological examination to see if there are any raised growths on the cervix. If there are raised growths, they need to be removed and sent for pathological examination. If not, cervical cancer screening is needed, such as cervical TCT and HPV screening. If there is no problem with the screening and the contact bleeding is recurrent, hysteroscopy or cervical conization is needed for further diagnosis, because the accuracy of the initial screening for cervical cancer is not 100%, and the bleeding may be caused by lesions in the cervical canal, which cannot be detected by screening alone. If the patient only has occasional bleeding during sexual intercourse, it should be analyzed in the context of the patient’s condition. It may be that the patient is bleeding during ovulation, or around the time of menstruation, etc., and cervical lesions are unlikely to be present. In this case, the patient can continue to observe, or can directly do cervical screening, to avoid the situation of missed diagnosis.