How can cervical cancer be prevented? Cervical cancer is an HPV infection that occurs all over the world and is one of the most common cancers in the human body. It is not only the first among female genital cancers, but also the most common cancer among various malignant tumors in women. Cervical cancer prevention is the most important means to prevent and control the occurrence of cervical cancer, we should start from two aspects, one is the prevention of the cause, the other is the preclinical prevention, that is, “three early” prevention, and secondly, women should have timely gynecological examination, which can also achieve the effect of cervical cancer prevention and timely detection of cervical cancer. Although the causes of cervical cancer are not completely clear, many factors are known to be closely related to it, which can be controlled, such as advocating late marriage, prohibiting early marriage and sexual disorders, practicing family planning, strengthening sex morality and sexual health education, and actively preventing and treating diseases related to the occurrence of cervical cancer. In addition, we should strengthen environmental protection, appropriate diet and sports to promote physical and mental health and improve immunity. The concept of cervical cancer etiology prevention must be included in adult and adolescent health education, and such education must be given ideological importance. The responsibility of men in reducing the risk of cervical cancer in sexual partners should be emphasized, as well as the responsibility of women themselves. Education for men should also begin in adolescence. Preclinical cervical cancer prevention, i.e. “three early” prevention, means early detection, early diagnosis and early treatment. The purpose is to prevent the development of the initial disease. The occurrence and development of cervical cancer has a gradual evolution process, which can last from several years to several decades. It is generally believed that this evolution process goes through several stages: hyperplasia, atypical hyperplasia, carcinoma in situ, early infiltration, and invasive carcinoma. Therefore, regular screening of married women in the population and timely diagnosis and treatment of precancerous lesions and early stage cancer will effectively prevent the occurrence of cervical cancer and reduce its mortality. Early signs of cervical cancer: 1.Increased leucorrhea, no abnormal smell at the beginning. 2.Abnormal leucorrhea, mixed with cervical cancer. 2.Abnormal leucorrhea, which can be mixed with blood and accompanied with foul smell. 3.Irregular vaginal bleeding, mostly seen in bleeding during sexual intercourse, bleeding after lower abdominal exertion and bleeding after menopause. 4.After the development of cervical cancer, urinary irritation with frequent urination and blood in stool may occur, which may also cause pelvic and lower limb pain and lower limb swelling. The following groups of people should have gynecological cancer examination every 2 to 3 years: those who had sexual intercourse or got married before the age of 18; those who have disordered sex life, frequent sexual intercourse and STD patients; those who had early marriage and multiple births; those who have cervical inflammation and erosion; those who have vaginal bleeding after sexual intercourse and vaginal discharge after menopause, especially bloody discharge; those who are over 35 years old and do not have any symptoms should also have regular routine examination. If necessary, TCT, colposcopy and cervical biopsy should be performed. Treatment of precancerous lesions: Precancerous lesions such as cervical erosion and CIN should be treated in time. At present, there are many other treatment methods for cervical precancerous lesions, such as cervical electrocautery, electrobaking, freezing and laser treatment. Drug therapy, interferon, etc. can also be used. The appropriate treatment method should be chosen according to the condition.