There is no clinical staging for early stage of cervical cancer, but mainly for cervical cancer, which can be divided into stage I, II, III and IV. If it is detected and treated early, it can be cured by surgery and the prognosis is relatively good. If it develops into middle or late stage, the treatment difficulty is very big and the prognosis is not very good, cervical cancer ranks the 2nd among female malignant tumors, and the incidence of the disease has a tendency of rejuvenation in recent years. Early stage of cervical cancer does not have obvious clinical symptoms, and some of the patients may have such symptoms as contact vaginal bleeding, vaginal discharge, abnormal leukorrhea and pain in coitus. If it reaches middle or late stage, secondary symptoms such as urinary urgency, frequent urination and constipation will appear due to the spread and metastasis of cancer cells, and ureteral obstruction and hydronephrosis will appear if it involves ureter, and if it spreads to the peripheral blood vessels, it will trigger the patients to suffer from swelling of lower limbs.