Cervical cancer 111clr is IIIC1 (3C1) stage, which means that the disease involves pelvic lymph nodes without para-aortic lymph node metastasis. r means that the imaging shows pelvic lymph node metastasis without pathological findings. IIIC1r belongs to the more advanced stage. 1. Cervical cancer is divided into stage IV. Stage I refers to the tumor is confined to the cervix, stage II refers to the tumor is beyond the uterus but does not reach the pelvic wall or the lower 1/3 of the vagina, and it is divided into stage IIA and stage IIB. Surgical radical operation is feasible before stage IIA1, and stage III refers to the tumor has been extended to the pelvic wall and/or involves the lower 1/3 of the vagina and/or causes pelvic hydronephrosis or renal incompetence and/or involves the pelvic cavity and/or para-aortic lymph nodes. (b) Involvement of pelvic and/or para-aortic lymph nodes. 2. As long as pelvic and/or para-aortic lymph node metastasis occurs in cervical cancer, regardless of the size and spread of the tumor, it is at least stage IIIC, and only involving pelvic lymph nodes is considered as stage IIIC1, and para-aortic lymph node metastasis is considered as stage IIIC2. Imaging evidence of lymph node metastasis is r, and pathologic evidence is p. 3. Stage IIIC1 cervical cancer is mainly treated with radiotherapy and chemotherapy, and the subsequent treatment depends on the patient’s condition. Synchronized radiotherapy and chemotherapy are carried out on the basis of radiotherapy, which is divided into internal and external irradiation, and generally takes 7 weeks, and after the treatment is finished, pelvic MRI and colposcopy should be carried out to evaluate the treatment effect. It is recommended that patients go to regular hospitals to receive standardized treatment as soon as possible in order to get better treatment results.