HPV18 negative refers to the absence of human papillomavirus subtype 18 infection, which is normal and can be determined by cervical biopsy. HPV refers to the human papillomavirus, which has many different types and is an important factor in cervical cancer. The human skin, digestive tract and respiratory tract can carry this virus, and its incubation period is very unstable. Women should pay more attention to the health of the cervix, especially cervical cancer, which can directly endanger women’s lives, so they should pay attention to regular cervical cancer screening, and if early lesions are detected, they should be treated immediately.