Bleeding on the second day of sexual intercourse should be followed by a gynecological examination and gynecological ultrasound. If the bleeding is caused by cervical erosion, a cervical cancer screening is needed to clarify whether the cervix has a tendency to become malignant. If it is caused by chronic inflammation, topical anti-infective drugs are usually given for treatment. If the bleeding is caused by endometritis, endometrial polyps, submucosal fibroids, etc., medication to stop the bleeding and, if necessary, surgery to remove the bleeding is required. If a small amount of bleeding occurs due to ovulation, pay attention to keeping the vulva clean and hygienic, and the bleeding will stop after 1-2 days. When a woman bleeds on the second day of sex, she should take it seriously and take appropriate measures according to the different causes.