According to the morphology of lesions, cervical squamous cell carcinoma can be divided into 4 types: exophytic, endophytic, ulcerative and cervical canal; according to the severity of the disease, cervical squamous cell carcinoma can be divided into 4 stages, which are I~IV respectively.
1. Exophytic type: exophytic lesions grow outward in the form of papillary or cauliflower pattern, which is more common. Usually the lesions tend to involve the vagina and are prone to contact bleeding.
2. Endogenous type: endogenous lesions infiltrate into the deep tissues of the cervix and tend to involve other tissues next to the uterus. The surface of the cervix is smooth or there is only ectopic columnar epithelium, and the cervical hypertrophy will become hard and barrel-shaped.
3. Ulcerative type: Ulcerative type is the exogenous or endogenous type of lesion tissue continues to develop and combined with the infection of necrosis, necrotic tissue after shedding the formation of ulcers or cavities, like a crater.
4. Cervical canal type: Cervical canal type lesion occurs in the cervical canal, which is usually easy to invade into the cervical canal and blood-supplying layer of the isthmus of the uterus, or metastasize to the pelvic lymph nodes.
Cervical cancer is categorized into four stages according to the depth and scope of invasion of cancerous foci, which are stages I~IV respectively. Cervical cancer patients should actively cooperate with doctors to improve relevant examinations and take targeted treatment measures.