Stages of Cervical Cancer
Cervical Cancer

  1. Stage 0 (carcinoma in Situ): abnormal cells are found in the innermost lining of the cervix. These abnormal cells may become cancer and spread into nearby normal tissue.
  2. Stage I: cancer is found in the cervix only. Stage I is divided into stages IA and IB, based on the amount of cancer that is found.
  • IA: Stage IA1 and IA2 cervical cancer. A very small amount of cancer that can only be seen with a microscope is found in the tissues of the cervix. In stage IA1, the cancer is not more than 3 millimeters deep and not more than 7 millimeters wide. In stage IA2, the cancer is more than 3 but not more than 5 millimeters deep and not more than 7 millimeters wide

  • IB: Stage IB1 and IB2 cervical cancer. In stage IB1, the cancer can only be seen with a microscopic and is more than 5 mm deep or more than 7 mm wide OR the cancer can be seen without a microscope and is 4 cm or smaller. In stage IB2, the cancer is larger than 4 cm.

  1. Stage II:  Stage II cervical cancer. Cancer has spread beyond the cervix but not to the pelvic wall or to the lower third of the vagina. In stages IIA1 and IIA2, cancer has spread beyond the cervix to the vagina. In stage IIA1, the tumor can be seen without a microscope and is 4 centimeters or smaller. In stage IIA2, the tumor can be seen without a microscope and is larger than 4 centimeters. In stage IIB, cancer has spread beyond the cervix to the tissues around the uterus.

  1. Stage III: cancer has spread to the lower third of the vagina, and/or to the pelvic wall, and/or has caused kidney problems. Stage III is divided into stages IIIA and IIIB, based on how far the cancer has spread.
  • Stage IIIA: Stage IIIA cervical cancer. Cancer has spread to the lower third of the vagina but not to the pelvic wall.

  • Stage IIIB: Stage IIIB cervical cancer. Cancer has spread to the pelvic wall; and/or the tumor has become large enough to block the ureters (the tubes that connect the kidneys to the bladder). 

  1. Stage IV: cancer has spread to the bladder, rectum, or other parts of the body. Stage IV is divided into stages IVA and IVB, based on where the cancer is found.
  • Stage IVA: Stage IVA cervical cancer. Cancer has spread to nearby organs, such as the bladder or rectum.

  • Stage IVB: Stage IVB cervical cancer. Cancer has spread to parts of the body away from the cervix, such as the liver, intestines, lungs, or bones.