Sexual life, marriage, and pregnancy factors Women who have sex too early (before the age of 18) have a 4-fold higher incidence of cervical cancer than those who start sex after the age of 18. If women start sex early and have sexually transmitted diseases such as syphilis and gonorrhea, their incidence will be 6 times higher than normal women. It has been confirmed that if women have sex with multiple men, they are more likely to develop cervical cancer. This may be because the lower reproductive tract of prepubescent women is not yet mature and is more sensitive to the stimulation of carcinogenic factors. If they start sex early, they are more likely to develop cancer once they are infected by certain bacteria or viruses. Exogenous factors The incidence of cervical cancer among Jews is low. Research suggests that the reason may be related to the Jewish custom of removing the foreskin of male babies after birth. However, some believe that among Jewish women who have not removed the foreskin, cervical cancer is also rare. There is currently a lack of experimental data to prove that circumcision can reduce the incidence of cervical cancer, although Nahmos has isolated HSV-2 from the smegma of men. Endocrine factors Whether sex hormones promote the occurrence of cervical cancer has also been a topic of research for many years. Animal experiments have successfully used estrogen to induce squamous cell carcinoma in mice, but there is no conclusive evidence that exogenous estrogen can induce cervical cancer in humans, which is also the cause of cervical cancer. Sexually Transmitted Diseases Before the 1960s, it was believed that syphilis patients had a high incidence of cervical cancer, but direct evidence that syphilis causes cervical cancer has not yet been found. Trichomonas vaginitis often coexists with cervical precancerous lesions or cervical cancer. |
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