Squamous cell invasive carcinoma of the uterine cervix, referred to as squamous carcinoma, is the most common pathological histological type of cervical cancer (the most common malignant tumor in gynecology), accounting for 75-80%, with a high incidence age of 50-55 years. Cervical cancer originates from cervical intraepithelial neoplasia (CIN), which continues to develop after the formation of CIN, breaks through the subepithelial basement membrane and infiltrates the mesenchyme to gradually form, and the process of lesion manifests as normal epithelium, intraepithelial neoplasia, carcinoma in situ, microinfiltrating carcinoma and infiltrating carcinoma. Squamous carcinoma of the uterine cervix is divided into 4 types according to the external morphology of the giant examination: exophytic type, the most common, the cancer foci are papillary or cauliflower-shaped outwardly, the tissue is brittle and bleeds easily when touched, often involving the vagina; endophytic type, the cancer foci infiltrate into the deep tissue of the uterine cervix, the surface of the cervix is smooth, hypertrophic and hardened, barrel-shaped, often involving the parametrial tissue; ulcerative type, the above two types of cancer tissue continue to develop combined with infection and necrosis, shedding and forming ulcers or cavities, resembling In the cervical canal type, the cancer foci occur in the cervical canal and often infiltrate into the cervical canal and the blood supply layer of the uterine isthmus and metastasize to the pelvic lymph nodes. Early cervical cancer often has no obvious symptoms and signs, but with the development of lesions, it often manifests as vaginal contact bleeding, such as after sexual intercourse or gynecological examination; it may also manifest as irregular vaginal bleeding, or prolonged menstruation and increased menstrual flow; elderly patients often have irregular vaginal bleeding after menopause. Cervical cancer occurs at the intersection of columnar epithelium and squamous epithelium (transformation zone, migratory zone) at the location of the ectocervix. Its development is associated with human papillomavirus (HPV) infection, especially the high-risk HPV types 16 and 18. In recent years, the HPV vaccine has become increasingly popular, and vaccination at the right time can reduce the risk of developing cervical cancer.