If the patient is simply infected, rather the HPV virus does not cause local lesions in the cervix or vagina and there are no clinical symptoms, the presence of HPV virus infection is known mainly through cervical screening. If the patient has cervical lesions, clinical symptoms will appear according to the lesions, and the possible clinical symptoms are mainly the following: First, the amount of leucorrhea increases, and the leucorrhea increases with a foul odor, while the patient will have discomfort such as pain in the abdomen and lumbago, and in individual cases the patient will have leucorrhea with blood. Secondly, patients may have contact bleeding after intercourse or gynecological examination, and may have vaginal discharge, which is a typical clinical symptom of early stage of intraepithelial neoplasia of the cervix and cervical cancer. Thirdly, patients may have irregular menstruation, irregular vaginal bleeding, and vulvar pain, which are related to local lesions of the cervix or vagina caused by viruses, and exudation due to increased vascular fragility.