The chances of inflammation or low-grade intraepithelial lesions are high when thin white epithelium is seen on colposcopy, but it is better to do further examination to clarify the diagnosis. Thin white epithelium seen on colposcopy is the result of acetic acid used to perform the white acetic acid test when examining the cervix. If the cervical tissues are normal and show transient whitening, they will gradually return to normal after one minute, and if thin white epithelium is present, inflammation or low-grade intraepithelial lesions, etc., will be considered. Patients are advised to have further iodine test examination and pathologic examination to determine whether they have precancerous lesions based on the results. If the results of iodine test and pathology examination are abnormal, it is recommended to consult a doctor in time to clarify the cause of the disease with the help of a doctor and carry out targeted treatment or therapy.