Twenty-year-old Xiaoli came to the gynecology clinic due to irregular vaginal bleeding. Gynecological examination showed that she had a history of sexual activity, and her cervix was severely eroded. Pathological biopsy results indicated early-stage cervical cancer. Further inquiry into her medical history revealed that she had been cohabiting with her boyfriend since the age of sixteen. Later, when her boyfriend left her for another woman, in order to get revenge for his infidelity, she engaged in relationships with several young men. It was her excessively early, frequent, and disordered sexual activity that caused Xiaoli to contract cervical cancer, a disease that is usually more common in women over 50 years old.