What is cervical cancer?

Cervical cancer is the most common gynecological malignant tumor. The high incidence age of carcinoma in situ is 30 ~ 35 years old, and the onset age of invasive carcinoma is 45 ~ 55 years old. In recent years, the incidence of cancer in situ has a trend of youthfulness. In recent decades, the extensive application of cervical cytology screening has enabled early detection and treatment of cervical cancer and precancerous lesions, and the incidence and mortality of cervical cancer have decreased significantly. Etiology Etiology may be related to the following factors: 1. Virus infection and persistent infection of high-risk human papillomavirus are the main risk factors of cervical cancer. More than 90% of cervical cancer is accompanied by high-risk human papillomavirus infection. 2. Sexual behavior and delivery times Multiple sexual partners, having sex for the first time.