What is cervical precancerous lesion? Pre-cancerous lesions of the cervix are lesions that occur in the area prior to the development of cancer and that lead to cancer. Cervical precancerous lesions are atypical hyperplasia of the cervix. The occurrence and development of cervical cancer has a gradual evolutionary process that can last from several years to several decades. It is generally believed that this evolutionary process goes through several stages: hyperplasia, atypical hyperplasia, carcinoma in situ, early infiltration, and invasive carcinoma. What are the clinical manifestations of cervical precancerous lesions? Patients with cervical precancerous lesions usually do not show obvious symptoms or only have symptoms of general cervicitis, such as increased leucorrhea. Some patients may complain of blood in the leukorrhea or a small amount of vaginal bleeding after sexual contact. Gynecological examination reveals a smooth cervix with no obvious inflammation, or a congested or eroded cervix, with varying degrees and ranges of erosion, which sometimes bleeds easily when touched and is not significantly different from general chronic cervicitis. Therefore, the clinical manifestations of CIN are not specific. The diagnosis cannot be made based on its symptoms and signs alone, and is mainly based on histological examination. Can precancerous cervical lesions be cured? 80% of cervical precancerous lesions can be cured through early detection and early treatment. Cervical atypical hyperplasia is a precancerous lesion, which is reversible, i.e. part of the lesion can disappear naturally, but it is also progressive, i.e. the lesion can develop and even become cancerous. Its reversibility and progressiveness are related to the extent and degree of lesions. Mild atypical hyperplasia is significantly more likely to disappear spontaneously than moderate or severe. The possibility of severe atypical hyperplasia developing into cancer is significantly greater than that of mild or moderate. Some scholars also believe that mild cervical atypical hyperplasia, which is a benign abnormal proliferation, can naturally turn into normal. What are the diagnostic methods of cervical precancerous lesions? 1.TCT cervical thin layer liquid-based cytology examination. 2.Human papillomavirus HPV test: to find out the high-risk group and for further examination. 3.Electronic colposcopy. 4.Cervical iodine test. 5.Cervical and cervical canal biopsy. 6.Cervical conization pathology examination. 7.Vaginal cytology examination. How to prevent cervical precancerous lesions? 1.Strengthen health education, raise the awareness of prevention, avoid premature sex and eliminate sexual confusion. 2.Regular gynecological examination, married women are recommended to have cervical cytology examination once a year, and further pathological examination should be done if problems are found. 3. For cervical lesions and reproductive system infections detected, especially HPV infection, appropriate treatment measures should be actively taken to prevent the occurrence and development of cervical cancer.