It usually takes 5-10 years for cervical precancerous lesions to develop into cervical cancer. If a patient is chronically positive for HPV and has a low immune system, it may develop into cervical cancer in 1-2 years at the earliest. Cervical precancerous lesions, i.e. cervical intraepithelial neoplasia, will develop into invasive cancer in about 5% of patients, usually in about 5-10 years. In general, cervical biopsy confirms cervical precancerous lesions and the patient needs to undergo cervical conization surgery for treatment. If the HPV turns negative after surgery and the patient’s immunity is high, the chance of cervical cancer is relatively low. If the HPV infection cannot be turned negative for a long time and the patient’s immunity is low, it may develop into cervical cancer within 1-2 years. Therefore, it is recommended that women should have annual cervical cancer screening, i.e. TCT and HPV, develop good habits in life, increase their resistance and do not change sex partners frequently.