Evaluate the Efficacy, Immunogenicity and Safety of 9-valent HPV Recombinant Vaccine in Chinese Healthy Females

This study is evaluating the safety and effectiveness of a 9-valent HPV vaccine (which protects against 9 strains of the human papillomavirus, a leading cause of cervical cancer) in Chinese women. You may be eligible if: - You are a Chinese woman between 20 and 45 years old - You are sexually active and have a valid ID - You have either never been screened for cervical cancer, or your past screening results were normal - You have not had sex, vaginal flushing, or used vaginal products for the required time before your gynecology visit - You have a negative pregnancy test and are not breastfeeding - You are using reliable contraception and do not plan to become pregnant during the study period - Your temperature is below 37.3°C at the time of enrollment You may NOT be eligible if: - You have received an HPV vaccine before or participated in an HPV vaccine trial - You have a previous history of abnormal cervical cells, cervical cancer, or genital lesions (such as genital warts, vulvar cancer, or vaginal cancer) - You have had a hysterectomy or pelvic radiation therapy - You have a history of seizures, severe allergic reactions, or significant immune system problems (such as HIV, lupus, leukemia, or other autoimmune diseases) - You have severe liver, kidney, heart, or other serious conditions - You have received a blood product or immune-suppressing medicine recently - You are currently pregnant Talk to your doctor to see if this trial is right for you.