The result of the cervical liquid-based cytology test is CIN grade 1, which is a low grade precancerous lesion of the cervix. From low grade cervical precancerous lesions to high grade cervical precancerous lesions, it takes 3-5 years, and from high grade cervical precancerous lesions to cervical cancer, it takes 5-10 years, so it takes about 10 years from CIN1 to cervical cancer, which is a relatively long time. It takes about 10-15 years from the infection of human papilloma virus to the emergence of cervical cancer. Therefore, the development of cervical cancer can be controlled by timely treatment of precancerous lesions detected by pre-cancerous screening of the cervix.