Validated Oncology Framework
Confined to Cervix
IA (<5mm depth) | IB (IB1 <2cm, IB2 2-4cm, IB3 ≥4cm)
Beyond Uterus (No Pelvic Wall)
IIA (Upper 2/3 Vagina) | IIB (Parametrial involvement)
Lower Vagina / Pelvic Wall
IIIA (Lower 1/3 Vagina) | IIIB (Pelvic Wall/Hydronephrosis) | IIIC (Lymph Nodes)
Bladder / Rectum / Distant
IVA (Adjacent organs) | IVB (Distant Metastasis)
Note: Clinical, imaging, and pathological findings are all used for formal staging since 2018.
Curated insights • How it Works • Practical Pearls • Evidence Base
Prior to 2018, cervical cancer staging was strictly clinical (allowing access in low-resource environments). The 2018 update fundamentally changed this, integrating advanced imaging (MRI/PET) and surgical pathology to assign stage, recognizing that clinical palpation vastly understages lymph node involvement.
| IA1 |
| IA2 |
| IB1 |
| IB2 |
| IB3 |
| IIA1 |
| IIA2 |
| IIB |
| IIIA |
| IIIB |
| IIIC1 |
| IIIC2 |
| IVA |
| IVB |
Revised FIGO staging for carcinoma of the cervix uteri.
The International Federation of Gynecology and Obstetrics (FIGO) Committee on Gynecologic Oncology continuously revises staging criteria to ensure they reflect modern diagnostic capabilities and therapeutic outcomes.