How long it usually takes for a low-grade epithelial lesion to reach cancer is related to the nature of the lesion, the treatment measures taken, etc. Low-grade cervical intraepithelial lesions are cervical precancerous lesions, which are a type of cervical intraepithelial neoplasia, also known as CIN grade 1. It is mainly due to persistent infection of patients with human papillomavirus, especially the high-risk type of human papillomavirus. If left untreated, cancer may develop in 5-10 years. Therefore, when low-grade epithelial lesions occur, patients are advised to go to the hospital gynecology department for HPV examination in a timely manner. If HPV(+) is present, cervical biopsy can be taken and sent for pathological examination, and the doctor will take different treatment measures, such as standardized medication, cervical conization, etc., according to the results of pathology and the specific conditions such as the patient’s age and fertility requirements, and review them regularly. From low-grade epithelial lesions to cancer, it can be blocked by surgery and medication. In addition, patients need to lead a regular life, avoid staying up late, avoid excessive stress, pay attention to keep the vulva clean and hygienic, eat a reasonable diet, and avoid overeating or stimulating diet.