Cervical erosion refers to cervical columnar epithelial ectasia, cervical liquid-based cytology found atypical squamous cells, the need for laser is related to the patient’s condition, some patients do not need to undergo laser treatment, some patients need to undergo. When cervical columnar epithelial ectasia is accompanied by atypical squamous cells, the patient should undergo cytology secondary classification, such as simple low-grade squamous intraepithelial lesions, 60% of patients can gradually and naturally subside, such patients can be regularly reviewed, no need to carry out laser treatment. For low-grade squamous intraepithelial lesions with high-risk human papillomavirus infection or high-grade squamous intraepithelial lesions, such lesions have the risk of developing into invasive carcinoma, which can be treated accordingly with laser surgery or cervical conization. When abnormal cervical lesions occur, patients should seek medical treatment as soon as possible to avoid delaying the condition and missing the best time for treatment.