The following reasons can cause atypical squamous cells clinically: first, after the IUD, the stimulation of the IUD can lead to the appearance of atypical squamous cells in the cervix, but it is not clinically significant, when the IUD is removed, the atypical squamous cells will disappear and turn to a normal state. Secondly, there is local chronic inflammation of the cervix, which may also lead to the clinical appearance of atypical squamous cells. After active treatment of cervical inflammation, the atypical squamous cells will disappear after clinical re-examination. Thirdly, the presence of atypical squamous cells may indicate the existence of lesions in the cervical epithelium. It is recommended that regular clinical review, such as a TCT test once every six months, be performed to find out whether atypical squamous cells still exist or whether there are other lesions in the clinic, and then treatment should be given.