A positive high-risk type 51 means infection with a high-risk human papillomavirus. There are many types of HPVs, both high-risk and low-risk. If the high-risk HPV infection persists for more than two years, it will easily develop into precancerous lesions of the cervix, and if not treated in time, it may develop into cervical cancer. Although the incidence of cervical cancer is very low, if it is detected as high-risk virus infection, further examination is needed. First of all, liquid-based cytology examination should be done. If there is no problem with liquid-based cytology examination, it is fine to review it after six months or a year. If there is cervical precancerous lesion in the cervical fluid-based cytology, colposcopy is the next step, and a biopsy will be taken for pathology under the observation of colposcopy.