Squamous cell metaplasia refers to localized squamous epithelial metaplasia and localized squamous epithelial hyperplasia, indicating a low-grade squamous intraepithelial lesion grade I with the possibility of precancerous lesions. It is a cytologic test, so it does not represent the entire histologic lesion of the cervix. Atypical squamous epithelial cells refer to morphologically abnormal squamous epithelial cells that cannot be sure of their morphological features and the nature of the lesion. Such patients should be reviewed with care. Avoidance of sexual intercourse and vaginal treatment should be noted before the review. The presence or absence of malignant lesions can be determined in conjunction with further cervical biopsy. As it is a pre-cancerous lesion, it must be closely monitored. One is LEEP (suitable for II outpatient surgery) and the other is cold knife conization (suitable for III inpatient surgery). Prevention is mainly carried out for possible predisposing causes. Removal of causative factors and triggers is the key to prevent this disease. Pay attention to avoid excessive sunlight and ultraviolet and X-ray exposure, and frequent exposure to chemicals such as arsenic and asphalt. Pay attention to dietary habits, eat more fruits and vegetables, eat less spicy and stimulating food and barbecue, maintain good living habits, and strengthen exercise to improve immunity has a good preventive effect on the occurrence of the disease. Enough nutritious food should be added. Eat appropriate food to nourish blood and Qi. The following foods are recommended to eat in moderation: 1, chicken rich in protein, nutrient-rich, provide the body with the nutrients needed to improve the ability to fight and recover from disease, make soup or dishes to eat. 2, barley, spleen and dampness, clear heat and detoxification, expectorant and pus, the disease has a very good effect on the relief, it is recommended to boil the porridge in moderation. 3, yam strengthen the spleen and nourish the qi, can enhance the body’s ability to resist and recover from the disease, moderate amount of steamed food.