I. Bleeding after sexual intercourse, 70-80% of cervical cancer patients have this symptom. 2. Cervical erosion that has been left untreated for a long time or still exists after menopause should be taken seriously. Contact bleeding, bleeding after sex or uterine bleeding after gynecological internal examination are all signs of precancerous cervical lesions. Except for uterine bleeding caused by IUD, women with long-term leukorrhea should be examined promptly. Women with the above symptoms should go to hospital for examination as early as possible so as to detect early signs of cervical cancer, make early diagnosis and treatment, and improve their health and quality of life.