Contact bleeding is a common gynecological symptom that can be triggered by vaginal bleeding after intercourse, i.e., sex, gynecological examination, or constipation, and is indicative of cervical or endometrial pathology. The presence of contact bleeding in most cases is often indicative of a serious disease, commonly uterine diseases such as cervical cancer, endometrial polyps, endometrial abnormalities such as cauliflower hyperplasia. The onset of these diseases is usually relatively young and is closely related to the imbalance of estrogen and progesterone secretion, infection with viruses such as human papillomavirus, and sexual life. If you find this symptom, you need to go to the obstetrics and gynecology department of the hospital in time to do special gynecological examinations such as endoscopy, ultrasound, scraping and exfoliative cell examination to rule out cancer and determine the diagnosis.