What is cervical cancer?

The main cause of cervical cancer is persistent infection with certain types of HPV. HPV is a common virus that is mainly transmitted through sexual contact. Viral particles can penetrate the skin and mucosal surfaces through tiny injuries and infect basal epithelial cells, which is cervical intraepithelial neoplasia (CIN). When deeper cells begin to show abnormalities, it is early cervical cancer. Early cervical cancer is not obvious. In the middle stage of cervical cancer, the body begins to have mild symptoms, such as abnormal vaginal bleeding, heavy menstrual bleeding, bleeding after sexual intercourse or bleeding after menstruation. When it reaches the late stage of cervical cancer, the body will have obvious symptoms, such as edema, bleeding during defecation, difficulty in defecation or enlarged lymph nodes.