Cervical lesion CIN3 refers to pre-cancerous cervical lesion, there is no data to prove the recurrence rate of this disease after conization, patients are advised to take active treatment and regular review. Cervical precancerous lesions are related to the persistent infection of human papillomavirus. High-risk human papillomavirus infection of cervical cells leads to abnormal proliferation of cervical cells, causing precancerous lesions, which are not obvious in clinical symptoms, and may progress to cervical cancer if not treated in time. Pre-cancerous cervical lesions can be treated by cervical conization, which is good for removing lesions and stopping the progression of the disease, but the recurrence rate is related to the condition, the patient’s physical condition and other factors. Patients with precancerous lesions of the cervix should consult a doctor in time, actively carry out relevant treatments under the guidance of a doctor, maintain a healthy lifestyle, and follow the doctor’s instructions for regular medical checkups or rechecks, and actively cooperate with the treatment when abnormalities occur.