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What Is the First Stage of Cervical Cancer?

First stage cervical cancer is localized to the cervix and has not spread to nearby tissues or other organs. In stage 1A cervical cancer, the tumor is so small it can only be seen with a microscope or colposcope. In stage 1B cervical cancer, the tumor is larger, localized to the cervix, and can be seen without a microscope.
First stage cervical cancer is localized to the cervix and has not spread to nearby tissues or other organs. In stage 1A cervical cancer, the tumor is so small it can only be seen with a microscope or colposcope. In stage 1B cervical cancer, the tumor is larger, localized to the cervix, and can be seen without a microscope.

Cervical cancer is cancer that begins when cells lining the cervix, the lower part of the uterus (womb), become abnormal and grow out of control.

The stage of a cancer is based on how big a tumor is and whether it has spread. 

In the first stage of cervical cancer, the cancer is localized to the cervix and has not spread to nearby tissues or other organs. 

  • In stage 1A cervical cancer, the tumor is so small it can only be seen with a microscope or colposcope.
  • In stage 1B cervical cancer, the tumor is larger, but still localized to the cervix. It is usually visible without a microscope.

What Are Symptoms of Cervical Cancer?

Early cervical cancer and pre-cancer usually do not have any symptoms. Symptoms of cervical cancer often do not start until the cancer grows and spreads into nearby tissue. When symptoms of cervical cancer occur, they may include: 

Symptoms of advanced cervical cancer may include:

What Causes Cervical Cancer?

The cause of cervical cancer is not always known though it may be due to genetic changes (mutations). 

Certain types of human papillomavirus (HPV) infection are the biggest risk factor for cervical cancer. 

In addition to HPV infection, risk factors for developing cervical cancer include: 

  • Sexual history
    • Becoming sexually active before 18 years old
    • Having many sexual partners
    • Having a partner who is considered high risk (someone with HPV infection or who has many sexual partners)
  • Smoking
  • A weakened immune system
  • Chlamydia infection 
  • Long-term use of oral contraceptives (birth control pills)
  • Age younger than 20 years at first full-term pregnancy 
  • Having multiple (3 or more) full-term pregnancies 
  • Economic status
    • Women with a low income may not have easy access to some health care services, including cervical cancer screening with Pap tests and HPV tests, which means they may not get screened or treated for cervical pre-cancers
  • A diet low in fruits and vegetables 
  • Diethylstilbestrol (DES) 
  • A family history of cervical cancer 

How Is Cervical Cancer Diagnosed?

Cervical cancer is diagnosed with regular screenings. 

  • A Pap smear (Pap test) is a test that collects cells from the cervix to check for abnormal cervical cells that can lead to cervical cancer
    • Pap tests are also used to find abnormal cervical cells before they become cancer (precancers)
  • The HPV test is usually used in 2 situations:
    • The primary HPV test is preferred for cervical cancer screening in women age 25-65 years 
    • Some HPV tests are part of a co-test, when the HPV test and the Pap test are done at the same time to screen for cervical cancer

What Is the Treatment for Cervical Cancer?

Treatments for cervical cancer may include one or more of the following:

  • Surgery 
    • For pre-cancer: 
      • Ablation to destroy cervical tissue with cold temperatures (cryosurgery) or a laser 
      • Excisional surgery (conization) to cut out and remove the pre-cancer
    • For invasive cervical cancer:
      • Hysterectomy (simple or radical) to remove the cervix and uterus
      • Trachelectomy to remove the cervix and the upper part of the vagina but not the body of the uterus for women who want maintain the ability to have children 
    • Lymph node removal
  • Radiation therapy 
    • External beam radiation
    • Brachytherapy (internal radiation therapy)
  • Chemotherapy (“chemo”)
    • For cervical cancer that has come back or spread to other areas:
      • Cisplatin
      • Carboplatin
      • Paclitaxel (Taxol)
      • Topotecan
      • Combinations of these drugs are often used
      • Other drugs may be used, such as docetaxel (Taxotere), ifosfamide (Ifex), 5-fluorouracil (5-FU), irinotecan (Camptosar), gemcitabine (Gemzar) and mitomycin
      • The targeted drug bevacizumab (Avastin) may be added to chemo
  • Chemoradiation, which is chemotherapy given along with radiation to help it work better
    • Cisplatin given weekly during radiation (carboplatin may be used instead) 
    • Cisplatin plus 5-fluorouracil (5-FU) given every 3 weeks during radiation
  • Targeted therapy 
    • Vascular endothelial growth factor (VEGF): bevacizumab (Avastin)
  • Immunotherapy 
    • Immune checkpoint inhibitors: pembrolizumab (Keytruda)

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References
https://www.cancer.org/cancer/cervical-cancer.html

https://www.cancerresearchuk.org/about-cancer/cervical-cancer/stages-types-grades/stage-1