Initially, the canceration was confined to the epithelial layer of cervical mucosa, and there was no infiltration, which was called carcinoma in situ. Cervical cancer (that is, cervical cancer) can occur in both the cervical lip and the cervical canal. However, it is more common at the junction of two kinds of epithelium at the external orifice of cervix, with more posterior lip, followed by cervical canal and anterior lip. When cancer invades submucosal stroma, it is called invasive cancer. The cervix of carcinoma in situ is almost normal, and the lesions of early invasive carcinoma are often confined to a certain part of the cervix, slightly raised, with a transverse diameter below 1cm, redness, hardness and easy bleeding when touched. If it occurs in the cervical canal, it is generally not easy to find. When the cancer develops to a considerable extent, the appearance will be manifested. Cauliflower or papillary type: most common, it is an exogenous cancer, showing a cauliflower pattern, which is easy to occur in the cervix and lips, with small spread, often accompanied by necrosis, infection and bleeding, and is sensitive to radiation. Type II: mainly infiltrative growth, with little bleeding, but large invasion and poor sensitivity to radiation. Triple ulcer type: it is less common than cauliflower type. The cancer tissue first destroys the surface of the cervix, then gradually soaks into it, resulting in more ulcers. This type mostly occurs in the cervical lip and cervical canal, and necrotic tissue is often seen, which is easy to be complicated with infection and sensitive to radiation. Four-node type: the rarest, cervical hypertrophy, mainly infiltrating into the deep part of the cervix. Generally, it is hard like a hard rubber or a wooden board, and it is moderately sensitive to radiation. Experts pointed out that no matter what type, ulcers can occur in the late stage. Due to the large necrosis and shedding of cancer tissue, most or all of the prototype of the cervix disappears at this time, showing a crater-like shape. From the histopathological point of view, cervical cancer can be roughly divided into three categories: first, squamous cell carcinoma: about 90% ~ 95% of cervical cancer belongs to this type, which often occurs at the junction of cervical squamous epithelium and columnar epithelium. Second adenocarcinoma: about 2% ~ 5%, this type of cancer mostly occurs in the cervical canal, and the morphology of cervical adenocarcinoma can be divided into adenoid, papillary and medullary. Triglandular keratocarcinoma: If adenocarcinoma has squamous metaplasia, it is called adenokeratocarcinoma. The above is the description and introduction of the pathology of cervical cancer. The people who are prone to cervical cancer are patients with chronic cervicitis, chronic pelvic inflammatory disease and chronic endometritis. In other words, the group suffering from chronic gynecological diseases for a long time is a group with hidden dangers, so female friends should also pay attention to this and don't ignore the possibility of cervical cancer.