You can get the 4-valent vaccine if you have CIN1 in the cervix. CIN1 refers to the mildest type of cervical intraepithelial neoplasia, 60% of this type will disappear naturally, and a small percentage will heal on their own within two years. Only about 10% or so require physical therapy, which does not mean that it has developed into cervical cancer. The HPV 4-valent vaccine protects against HPV types 6, 11, 16, and 18, and there is no need for cervical screening prior to vaccination. Therefore, even if cervical lesions are present, the HPV vaccine can have an immune-boosting effect. In addition, cervical intraepithelial neoplasia can be a chronic inflammatory reaction or an HPV infection, such as HPV type 16, in which case the 4-valent vaccine can be used to prevent infection with other types. Cervix with CIN1 is recommended to actively vaccinate with the 4-valent vaccine, go to the hospital for review on time, and increase physical exercise in moderation to improve immunity.