The cervical tissue cells of adolescent girls are not yet fully developed, being relatively fragile and sensitive to external carcinogenic and cancer-promoting substances. If her sexual partner is a carrier of cancer cells, it would be rather easy for the cancer cells to be transmitted and implanted onto the girl's immature cervical tissue during sexual intercourse. After sperm enters the vagina, a kind of sperm antibody is produced, which usually takes about four months to disappear. If one has more sexual partners and engages in sexual activity too frequently, multiple antibodies (foreign proteins) will be generated, entering the female body in a short period of time. This interferes with the antibody reaction against sperm production, thus making it easier to contract cervical cancer. ...