Atypical cells are not cancer, they are precancerous lesions. If they are not controlled and treated in time, they can easily develop into cancer. Clinically, it is called atypical cells and atypical hyperplasia, called precancerous lesions, so timely treatment is generally required, either through surgery or laser treatment, to completely remove atypical cells. Preventing the possibility of developing cancer in external stimuli and continuing development can be done in advance. If prevention can be carried out in advance, most patients can be completely blocked from developing into cancer. Therefore, early detection, early diagnosis and early treatment are the keys to prevent the development of cancer.