Stage 0

Abnormal cells are found in the innermost lining of the cervix. These abnormal cells may become cancer and spread into nearby normal tissue (also called carcinoma in situ)

Stage I-A

A very small amount of cancer that can only be seen with a microscope is found in the tissues of the cervix and the cancer is not more than 3 millimeters deep and not more than 7 millimeters wide.

Stage IA-2

The cancer is more than 3 but not more than 5 millimeters deep, and not more than 7 millimeters wide.

Stage I-B1

The cancer can only be seen with a microscope and is more than 5 millimeters deep and more than 7 millimeters wide; or

  • the cancer can be seen without a microscope and is not more than 4 centimeters.
  • In stage IB2, the cancer can be seen without a microscope and is more than 4 centimeters.

Stage II-A

Cancer has spread beyond the cervix to the upper two thirds of the vagina but not to tissues around the uterus.

Stage II-A1

The tumor can be seen without a microscope and is not more than 4 centimeters.

Stage II-A2

The tumor can be seen without a microscope and is more than 4 centimeters.

Stage II-B

Cancer has spread beyond the cervix to the tissues around the uterus but not onto the pelvic wall.

Stage III-A

Cancer has spread to the lower third of the vagina but not onto the pelvic wall.

Stage III-B

  • Cancer has spread onto the pelvic wall; or
  • The tumor has become large enough to block one or both ureters (tubes that connect the kidneys to the bladder) and has caused one or both kidneys to get bigger or stop working.

Stage IV-A

Cancer has spread to nearby organs, such as the bladder or rectum.

Stage IV-B

Cancer has spread to other parts of the body, such as the liver, lungs, bones, or distant lymph nodes.

*Source: National Cancer Institute, March 28, 2018

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