Cervical cancer is one of the most preventable and treatable types of cancer, especially when detected early. Understanding its stages—from the very initial phases, where the cancer is microscopic, to more advanced stages that impact surrounding tissues—is key to managing the disease effectively.

Each stage provides a unique view into the extent of the cancer's growth and spread, guiding treatment options and prognosis. This blog explores the distinct stages of cervical cancer, shedding light on what each phase entails and how early detection can make a significant difference in outcomes for patients.

Cervical cancer stages help in understanding the cancer’s progression and guide treatment plans. Here's an overview of each stage according to the FIGO (International Federation of Gynecology and Obstetrics) staging system:

Stage IA1

  • Description This is an early, microscopic stage where a small cluster of cancer cells has penetrated less than 3 mm into the cervical tissue.

  • Characteristics Tumor size is minimal and typically only visible under a microscope.

Stage IA2

  • Description Cancer has invaded between 3-5 mm into the cervical tissue but still remains microscopic.

  • Characteristics Cancer size is slightly larger than IA1 but still limited, with a depth less than 5 mm.

Stages IB1 to IIA1

  • Description This stage includes visible tumors larger than those in stage IA, but they’re still limited to the cervix or upper part of the vagina.

    • IB1: Tumors are visible but smaller than 2 cm.
    • IB2: Tumors are between 2-4 cm.
    • IB3: Tumors are larger than 4 cm.
  • IIA1 Tumors extend into the upper two-thirds of the vagina but remain smaller than 4 cm.

Stages IB3 to IIA2

  • Description Tumors are now more prominent.

    • IB3: Visible tumor over 4 cm confined to the cervix.
    • IIA2: Tumor extends into the upper part of the vagina, measuring more than 4 cm in size.

Stages IIB, III, IVA

  • Stage IIB Cancer has spread to nearby structures, such as the tissues next to the cervix but not beyond the pelvic wall.

  • Stage III Cancer has extended to the lower third of the vagina or the pelvic wall and may obstruct the ureters.

    • IIIA: Involves the lower third of the vagina.
    • IIIB: Involves pelvic wall and/or blocks ureters, causing kidney issues.
  • Stage IVA Cancer has spread to nearby organs like the bladder or rectum but has not reached distant sites.

Stage IVB

  • Description Cancer has spread to distant organs, including the lungs, bones, or distant lymph nodes, representing the most advanced stage.

  • Characteristics This stage indicates metastatic disease where cancer cells have traveled to other areas of the body.

Recurrent Cervical Cancer

  • Description Cancer that returns after treatment, either in the cervix, nearby pelvic area, or other body parts.

The stages of cervical cancer discussed in this blog are outlined based on the FIGO (International Federation of Gynecology and Obstetrics) staging system. This internationally recognized framework classifies cervical cancer stages to provide a standardized approach to diagnosis, treatment planning, and prognosis evaluation.

Take Action