Stage I: The carcinoma is strictly confined to the cervix uteri (extension to the corpus should be disregarded)
IA: Invasive carcinoma that can be diagnosed only by microscopy, with maximum depth of invasion < 5 mma
	IA1: Measured stromal invasion < 3 mm in depth
	IA2: Measured stromal invasion ≥ 3 mm and < 5 mm in depth
IB Invasive carcinoma with measured deepest invasion ≥ 5 mm (greater than stage IA), lesion limited to the cervix uterib
	IB1: Invasive carcinoma ≥ 5 mm depth of stromal invasion and < 2 cm in greatest dimension
	IB2: Invasive carcinoma ≥ 2 cm and < 4 cm in greatest dimension
	IB3: Invasive carcinoma ≥ 4 cm in greatest dimension
Stage II: The carcinoma invades beyond the uterus, but has not extended onto the lower third of the vagina or to the pelvic wall
IIA Involvement limited to the upper two‐thirds of the vagina without parametrial involvement
	IIA1: Invasive carcinoma < 4 cm in greatest dimension
	IIA2: Invasive carcinoma ≥ 4 cm in greatest dimension
IIB With parametrial involvement but not up to the pelvic wall
Stage III: The carcinoma involves the lower third of the vagina and/or extends to the pelvic wall and/or causes hydronephrosis or non‐functioning kidney and/or involves pelvic and/or paraaortic lymph nodesc
IIIA: Carcinoma involves the lower third of the vagina, with no extension to the pelvic wall
IIIB: Extension to the pelvic wall and/or hydronephrosis or non‐functioning kidney (unless known to be due to another cause)
IIIC: Involvement of pelvic and/or para‐aortic lymph nodes, irrespective of tumour size and extent (with r and p notations)c
	IIIC1 Pelvic lymph node metastasis
	IIIC2 Para‐aortic lymph node metastasis
Stage IV: The carcinoma has extended beyond the true pelvis or has involved (biopsy proven) the mucosa of the bladder or rectum. A bullous edema, as such, does not permit a case to be allotted to stage IV
IVA: Spread of the growth to adjacent organs
IVB: Spread to distant organs
Remark FIGO, International Federation of Gynecology and Obstetrics aImaging and pathology can be used, when available, to supplement clinical findings with respect to tumour size and extent, in all stages.
bThe involvement of vascular/lymphatic spaces does not change the staging. The lateral extent of the lesion is no longer considered.
cAdding notation of r (imaging) and p (pathology) to indicate the findings that are used to allocate the case to stage IIIC. For example, if imaging indicates pelvic lymph node metastasis, the stage allocation would be stage IIIC1r and, if confirmed by pathological findings, it would be Stage IIIc1p. The type of imaging modality or pathology technique used should always be documented. When in doubt, the lower staging should be assigned.