患者さん向け Cervical Cancer Treatment (PDQ®)

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This PDQ cancer information summary has current information about the treatment of cervical cancer. It is meant to inform and help patients, families, and caregivers. It does not give formal guidelines or recommendations for making decisions about health care.

Editorial Boards write the PDQ cancer information summaries and keep them up to date. These Boards are made up of experts in cancer treatment and other specialties related to cancer. The summaries are reviewed regularly and changes are made when there is new information. The date on each summary ("Date Last Modified") is the date of the most recent change. The information in this patient summary was taken from the health professional version, which is reviewed regularly and updated as needed, by the PDQ Adult Treatment Editorial Board.

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General Information About Cervical Cancer

Cervical cancer is a disease in which malignant (cancer) cells form in the tissues of the cervix.

The cervix is the lower, narrow end of the uterus (the hollow, pear-shaped organ where a fetus grows). The cervix leads from the uterus to the vagina (birth canal).

Anatomy of the female reproductive system; drawing shows the uterus, myometrium (muscular outer layer of the uterus), endometrium (inner lining of the uterus), ovaries, fallopian tubes, cervix, and vagina.

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Anatomy of the female reproductive system. The organs in the female reproductive system include the uterus, ovaries, fallopian tubes, cervix, and vagina. The uterus has a muscular outer layer called the myometrium and an inner lining called the endometrium.

Cervical cancer usually develops slowly over time. Before cancer appears in the cervix, the cells of the cervix go through changes known as dysplasia, in which abnormal cells begin to appear in the cervical tissue. Over time, the abnormal cells may become cancer cells and start to grow and spread more deeply into the cervix and to surrounding areas.

Cervical cancer in children is rare.

See the following PDQ summaries for more information about cervical cancer:

Human papillomavirus (HPV) infection is the major risk factor for cervical cancer.

Anything that increases your chance of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk to your doctor if you think you may be at risk for cervical cancer.

Risk factors for cervical cancer include the following:

In women who are infected with HPV, the following risk factors add to the increased risk of cervical cancer:

There are also risk factors that increase the risk of HPV infection:

Older age is a main risk factor for most cancers. The chance of getting cancer increases as you get older.

There are usually no signs or symptoms of early cervical cancer but it can be detected early with regular check-ups.

Early cervical cancer may not cause signs or symptoms. Women should have regular check-ups, including tests to check for human papillomavirus (HPV) or abnormal cells in the cervix. The prognosis (chance of recovery) is better when the cancer is found early.

Signs and symptoms of cervical cancer include vaginal bleeding and pelvic pain.

These and other signs and symptoms may be caused by cervical cancer or by other conditions. Check with your doctor if you have any of the following:

Tests that examine the cervix are used to diagnose cervical cancer.

The following procedures may be used:

Certain factors affect prognosis (chance of recovery) and treatment options.

The prognosis depends on the following:

Treatment options depend on the following:

Treatment of cervical cancer during pregnancy depends on the stage of the cancer and the stage of the pregnancy. For cervical cancer found early or for cancer found during the last trimester of pregnancy, treatment may be delayed until after the baby is born. For more information, see the section on Cervical Cancer During Pregnancy.

Stages of Cervical Cancer

After cervical cancer has been diagnosed, tests are done to find out if cancer cells have spread within the cervix or to other parts of the body.

The process used to find out if cancer has spread within the cervix or to other parts of the body is called staging. The information gathered from the staging process determines the stage of the disease. It is important to know the stage in order to plan treatment.

The following tests and procedures may be used in the staging process:

The results of these tests are viewed together with the results of the original tumor biopsy to determine the cervical cancer stage.

There are three ways that cancer spreads in the body.

Cancer can spread through tissue, the lymph system, and the blood:

Cancer may spread from where it began to other parts of the body.

When cancer spreads to another part of the body, it is called metastasis. Cancer cells break away from where they began (the primary tumor) and travel through the lymph system or blood.

The metastatic tumor is the same type of cancer as the primary tumor. For example, if cervical cancer spreads to the lung, the cancer cells in the lung are actually cervical cancer cells. The disease is metastatic cervical cancer, not lung cancer.

Abnormal cells may form in the lining of the cervix (carcinoma in situ).

In 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.

The following stages are used for cervical cancer:

Stage I

In stage I, cancer has formed and is found in the cervix only.

Stage I is divided into stages IA and IB, based on the size of the tumor and the deepest point of tumor invasion.

Stage II

In stage II, cancer has spread to the upper two-thirds of the vagina or to the tissue around the uterus.

Stage II is divided into stages IIA and IIB, based on how far the cancer has spread.

Stage II cervical cancer; drawing shows two cross-sections of the uterus, cervix, and vagina. The drawing on the left shows stages IIA1 and IIA2 cancer in the cervix that is 4 cm and has spread to the upper two-thirds of the vagina. The drawing on the right shows stage IIB cancer that has spread from the cervix to the tissue around the uterus.

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Stage II cervical cancer. In stages IIA1 and IIA2, cancer has spread from the cervix to the upper two-thirds of the vagina but has not spread to the tissue around the uterus. In stage IIA1, the cancer is 4 centimeters or smaller. In stage IIA2, the cancer is larger than 4 centimeters. In stage IIB, cancer has spread from the cervix to the tissue around the uterus.

Stage III

In stage III, cancer has spread to the lower third of the vagina and/or to the pelvic wall, and/or has caused kidney problems, and/or involves lymph nodes.

Stage III is divided into stages IIIA, IIIB, and IIIC, based on how far the cancer has spread.

Stage IV

In stage IV, cancer has spread beyond the pelvis, or has spread to the lining of the bladder or rectum, or has spread to other parts of the body.

Stage IV is divided into stages IVA and IVB, based on where the cancer has spread.

Cervical cancer can recur (come back) after it has been treated.

The cancer may come back in the cervix or in other parts of the body.

Treatment Option Overview

There are different types of treatment for patients with cervical cancer.

Different types of treatment are available for patients with cervical cancer. Some treatments are standard (the currently used treatment), and some are being tested in clinical trials. A treatment clinical trial is a research study meant to help improve current treatments or obtain information on new treatments for patients with cancer. When clinical trials show that a new treatment is better than the standard treatment, the new treatment may become the standard treatment. Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

Five types of standard treatment are used:

Surgery

Surgery (removing the cancer in an operation) is sometimes used to treat cervical cancer. The following surgical procedures may be used:

Radiation therapy

Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy:

The way the radiation therapy is given depends on the type and stage of the cancer being treated. External and internal radiation therapy are used to treat cervical cancer, and may also be used as palliative therapy to relieve symptoms and improve quality of life.

Chemotherapy

Chemotherapy is a cancer treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. When chemotherapy is taken by mouth or injected into a vein or muscle, the drugs enter the bloodstream and can reach cancer cells throughout the body (systemic chemotherapy).

See Drugs Approved for Cervical Cancer for more information.

Targeted therapy

Targeted therapy is a type of treatment that uses drugs or other substances to identify and attack specific cancer cells. Targeted therapies usually cause less harm to normal cells than chemotherapy or radiation therapy do.

Monoclonal antibody therapy is a type of targeted therapy.

See Drugs Approved for Cervical Cancer for more information.

Immunotherapy

Immunotherapy is a treatment that uses the patient's immune system to fight cancer. Substances made by the body or made in a laboratory are used to boost, direct, or restore the body's natural defenses against cancer. This cancer treatment is a type of biologic therapy.

Immune checkpoint inhibitor therapy is a type of immunotherapy.

Immune checkpoint inhibitor; the panel on the left shows the binding of proteins PD-L1 (on the tumor cell) to PD-1 (on the T cell), which keeps T cells from killing tumor cells in the body. Also shown are a tumor cell antigen and T cell receptor. The panel on the right shows immune checkpoint inhibitors (anti-PD-L1 and anti-PD-1) blocking the binding of PD-L1 to PD-1, which allows the T cells to kill tumor cells.

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Immune checkpoint inhibitor. Checkpoint proteins, such as PD-L1 on tumor cells and PD-1 on T cells, help keep immune responses in check. The binding of PD-L1 to PD-1 keeps T cells from killing tumor cells in the body (left panel). Blocking the binding of PD-L1 to PD-1 with an immune checkpoint inhibitor (anti-PD-L1 or anti-PD-1) allows the T cells to kill tumor cells (right panel).

See Drugs Approved for Cervical Cancer for more information.

New types of treatment are being tested in clinical trials.

Information about clinical trials is available from the NCI website.

Treatment for cervical cancer may cause side effects.

For information about side effects caused by treatment for cancer, see our Side Effects page.

Patients may want to think about taking part in a clinical trial.

For some patients, taking part in a clinical trial may be the best treatment choice. Clinical trials are part of the cancer research process. Clinical trials are done to find out if new cancer treatments are safe and effective or better than the standard treatment.

Many of today's standard treatments for cancer are based on earlier clinical trials. Patients who take part in a clinical trial may receive the standard treatment or be among the first to receive a new treatment.

Patients who take part in clinical trials also help improve the way cancer will be treated in the future. Even when clinical trials do not lead to effective new treatments, they often answer important questions and help move research forward.

Patients can enter clinical trials before, during, or after starting their cancer treatment.

Some clinical trials only include patients who have not yet received treatment. Other trials test treatments for patients whose cancer has not gotten better. There are also clinical trials that test new ways to stop cancer from recurring (coming back) or reduce the side effects of cancer treatment.

Clinical trials are taking place in many parts of the country. Information about clinical trials supported by NCI can be found on NCI’s clinical trials search webpage. Clinical trials supported by other organizations can be found on the ClinicalTrials.gov website.

Follow-up tests may be needed.

Some of the tests that were done to diagnose the cancer or to find out the stage of the cancer may be repeated. Some tests will be repeated in order to see how well the treatment is working. Decisions about whether to continue, change, or stop treatment may be based on the results of these tests.

Some of the tests will continue to be done from time to time after treatment has ended. The results of these tests can show if your condition has changed or if the cancer has recurred (come back). These tests are sometimes called follow-up tests or check-ups.

Your doctor will ask if you have any of the following signs or symptoms, which may mean the cancer has come back:

For cervical cancer, follow-up tests are usually done every 3 to 4 months for the first 2 years, followed by check-ups every 6 months. The check-up includes a current health history and exam of the body to check for signs and symptoms of recurrent cervical cancer and for late effects of treatment.

Treatment of Carcinoma in Situ

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment of carcinoma in situ may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Treatment of Stage IA Cervical Cancer

For information about the treatments listed below, see the Treatment Option Overview section.

Stage IA cervical cancer is separated into stage IA1 and IA2.

Treatment for stage IA1 may include the following:

Treatment for stage IA2 may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Treatment of Stages IB and IIA Cervical Cancer

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment of stage IB and stage IIA cervical cancer may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Treatment of Stages IIB, III, and IVA Cervical Cancer

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment of stage IIB, stage III, and stage IVA cervical cancer may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Treatment of Stage IVB Cervical Cancer

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment of stage IVB cervical cancer may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Treatment of Recurrent Cervical Cancer

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment of recurrent cervical cancer may include the following:

Use our clinical trial search to find NCI-supported cancer clinical trials that are accepting patients. You can search for trials based on the type of cancer, the age of the patient, and where the trials are being done. General information about clinical trials is also available.

Cervical Cancer During Pregnancy

General Information About Cervical Cancer During Pregnancy

Treatment of cervical cancer during pregnancy depends on the stage of the cancer and how long the patient has been pregnant. A biopsy and imaging tests may be done to determine the stage of the disease. To avoid exposing the fetus to radiation, MRI (magnetic resonance imaging) is used.

Treatment of Carcinoma in Situ During Pregnancy

Usually, no treatment is needed for carcinoma in situ during pregnancy. A colposcopy may be done to check for invasive cancer.

Treatment of Stage I Cervical Cancer During Pregnancy

For information about the treatments listed below, see the Treatment Option Overview section.

Pregnant women with slow-growing stage I cervical cancer may be able to delay treatment until the second trimester of pregnancy or after delivery.

Pregnant women with fast-growing stage I cervical cancer may need immediate treatment. Treatment may include:

Women should be tested to find out if the cancer has spread to the lymph nodes. If cancer has spread to the lymph nodes, immediate treatment may be needed.

Treatment of Stages II, III, and IV Cervical Cancer During Pregnancy

For information about the treatments listed below, see the Treatment Option Overview section.

Treatment for stage II, stage III, and stage IV cervical cancer during pregnancy may include the following:

To Learn More About Cervical Cancer

For more information from the National Cancer Institute about cervical cancer, see the following:

For general cancer information and other resources from the National Cancer Institute, see the following:

About This PDQ Summary

About PDQ

Physician Data Query (PDQ) is the National Cancer Institute's (NCI's) comprehensive cancer information database. The PDQ database contains summaries of the latest published information on cancer prevention, detection, genetics, treatment, supportive care, and complementary and alternative medicine. Most summaries come in two versions. The health professional versions have detailed information written in technical language. The patient versions are written in easy-to-understand, nontechnical language. Both versions have cancer information that is accurate and up to date and most versions are also available in Spanish.

PDQ is a service of the NCI. The NCI is part of the National Institutes of Health (NIH). NIH is the federal government’s center of biomedical research. The PDQ summaries are based on an independent review of the medical literature. They are not policy statements of the NCI or the NIH.

Purpose of This Summary

This PDQ cancer information summary has current information about the treatment of cervical cancer. It is meant to inform and help patients, families, and caregivers. It does not give formal guidelines or recommendations for making decisions about health care.

Reviewers and Updates

Editorial Boards write the PDQ cancer information summaries and keep them up to date. These Boards are made up of experts in cancer treatment and other specialties related to cancer. The summaries are reviewed regularly and changes are made when there is new information. The date on each summary ("Updated") is the date of the most recent change.

The information in this patient summary was taken from the health professional version, which is reviewed regularly and updated as needed, by the PDQ Adult Treatment Editorial Board.

Clinical Trial Information

A clinical trial is a study to answer a scientific question, such as whether one treatment is better than another. Trials are based on past studies and what has been learned in the laboratory. Each trial answers certain scientific questions in order to find new and better ways to help cancer patients. During treatment clinical trials, information is collected about the effects of a new treatment and how well it works. If a clinical trial shows that a new treatment is better than one currently being used, the new treatment may become "standard." Patients may want to think about taking part in a clinical trial. Some clinical trials are open only to patients who have not started treatment.

Clinical trials can be found online at NCI's website. For more information, call the Cancer Information Service (CIS), NCI's contact center, at 1-800-4-CANCER (1-800-422-6237).

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The best way to cite this PDQ summary is:

PDQ® Adult Treatment Editorial Board. PDQ Cervical Cancer Treatment. Bethesda, MD: National Cancer Institute. Updated <MM/DD/YYYY>. Available at: https://www.cancer.gov/types/cervical/patient/cervical-treatment-pdq. Accessed <MM/DD/YYYY>. [PMID: 26389422]

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