Stage 4 cancer is the most advanced stage, meaning cancer has spread to other parts of the body. You may be able to live for years with stage 4 cancer, but the prognosis often isn't good. Rather than focusing on curing the cancer, treatments work to slow or stop growth, relieve symptoms, and help you live longer and enjoy a high quality of life.
When cancer spreads to organs away from the original tumor site, it's said to metastasize. That's why stage 4 cancer is also called metastatic cancer.
This article gives an overview of stage 4 cancer. It explains what it is, how it's diagnosed, possible treatment options, and what you should know about survival rates.
:max_bytes(150000):strip_icc()/stage-4-cancer-5092070_color-b41add690efd427294f126c16723372c.jpg "Does Stage 4 Cancer Mean That It Is Terminal? (1)")
Stage 4 Cancer Symptoms
The symptoms of metastatic cancer depend on the type of cancer and, more importantly, where the metastases have occurred. In some cases, there are no symptoms at all, so it's possible to have stage 4 cancer and not know it.
Most of the time, a cancer that reaches stage 4 affects not only the part of the body where it originated but the areas where it has spread to as well.
| Common Symptoms of Metastatic Cancer | |
|---|---|
| When cancer spreads to: | It may cause: |
| Lungs | •Shortness of breath (dyspnea) •Cough •Coughing up blood •Chest pain |
| Liver | •Pain •Weight loss •Yellowing of skin (jaundice) •Abdominal swelling and fluid (ascites) |
| Bones | •Pain, especially severe back pain plus numbness in a leg or loss of bowel or bladder control •Fractures, especially without injury |
| Brain | •Headaches •Dizziness •Nausea •Problems with speech or vision •Trouble walking •Confusion •Seizures |
Stage 4 cancer also can cause more general symptoms, such as extreme fatigue and lack of energy. Some people become so tired and weak they have trouble doing everyday things. They may even need help with getting dressed or other routine tasks.
Hearing your healthcare provider call a liver tumor "breast cancer" may sound strange. But stage 4 cancer is diagnosed based on where the original cancer is located, not where it has spread. So, breast cancer that has spread to the liver will be called stage 4 breast cancer with liver metastasis—not stage 4 liver cancer.
Causes
Cancer diagnosed as stage 4 has spread to an organ or a part of the body away from the original tumor. For this to happen:
- Cancer cells break away from the tumor. They find their way into the bloodstream or, less often, the lymphatic system—a network that helps transport white blood cells and clear harmful substances from your system.
- Cells are carried in the blood or lymph fluid to another part of the body. They attach to the tissue there.
- Once they're attached, the cells grow while simultaneously fighting off the immune system.
The cancer's spread will often begin in the same region where the original cells were found. For example, breast cancer may spread to lymph nodes under the arm.
Common ways that cancer metastasizes include:
- Lung cancer to adrenal glands, bones, brain, liver, and the other lung
- Breast cancer to bones, brain, liver, and lungs
- Prostate cancer to adrenal glands, bone, liver, and lungs
- Colorectal cancer to liver, lungs, and peritoneum (lining of the abdomen)
- Melanoma to bones, brain, liver, lung, skin, and muscle
Stage 4 Cancer and the Lungs
Because cancer cells that break away from the original tumor travel through the body via the bloodstream, the lungs are a common site of metastasis since blood always filters through the lungs.
Diagnosing Stage 4 Cancer
Oncologists are doctors who specialize in diagnosing and treating cancer. Many of the same tests and procedures used to diagnose earlier stage cancers can be used to diagnose stage 4 cancer.
Biopsy
A small amount of tissue from the suspected area of spread is removed. This could be something like breast tissue, skin, or even bone marrow.
It is examined under a microscope for signs of abnormal cells.
What Cancer Looks Like Under a Microscope
Imaging Tests
Images make it possible to view the inside of the body to check a tumor. They help to identify where it is, how large it is, and how it's affecting other organs and blood flow.
Tests used to diagnose cancer include:
- X-rays
- Computerized tomography (CT) scan
- Magnetic resonance imaging (MRI)
- Ultrasound
- Positron emission tomography(PET) scan
Lab Tests
Many tests that are run to analyze blood, other body fluids, and biopsied tissues can be used to diagnose cancer.
Endoscopy
Endoscopy is a procedure in which a tube or wire with a small camera attached is used to look at and take pictures of internal organs.
This procedure can also help guide a practitioner as they perform a biopsy.
Different Types of Endoscopy
Cancer Staging
Stage 4 cancer is the most advanced stage of cancer based on what is known as the TNM system in which aspects of the cancer are graded on a numerical scale. The letters T, N, and M refer to specific features of a cancer:
- T refers to the size of the tumor and whether it has spread to nearby tissue or organs. The T rating ranges from 0 to 4.
- N refers to whether the cancer has spread to lymph nodes. These are scored from 0 to 3.
- M stands for metastasis. There are two M stages: M0 means there's no spread, while M1 means cancer cells have metastasized.
Taken together, the TNM score will help you and your healthcare team to understand how the cancer has progressed and what treatment options are available.
An M score of 1 automatically classifies cancer as stage 4. Still, prognosis of an M1 case varies depending on the T and N classifications of the cancer.
Substages
Some stage 4 cancers have sub-stages.For example, stage 4 prostate cancer may be labeled as stage 4A. This means it has spread to lymph nodes near the site.
Stage 4B means the spread is farther away, and the cancer may have reached bones or distant lymph nodes.
Treatment
Stage 4 cancer usually can't be cured. In addition, because it's usually spread throughout the body by the time it's diagnosed, it is unlikely the cancer can be completely removed.
The goal of treatment is to prolong survival and improve your quality of life.
An oncologist will treat the cancer depending on its type, where it has spread, and other factors. Some of the options include surgery, medication (targeted therapy), immunotherapy, and chemotherapy.
Surgery
Surgery typically is not used to treat stage 4 cancer. However, if the sites of spread are small and there aren't very many of them, they can be removed along with the primary tumor. In these instances, surgery may relieve symptoms and help prevent the cancer from spreading even more.
Targeted Therapy
Some cancer cells can be treated with medications that target specific proteins or genetic mutations.
These drugs work in different ways. For example, some help starve a tumor of its blood supply, while others block signals that prompt cancer cells to divide.
Testing can determine whether your tumor could respond to any of the available targeted therapy drugs.
Immunotherapy
Immunotherapy relies on drugs that use your immune system, including blood proteins called antibodies, to attack tumor cells.
Immunotherapy drugs exist for many types of cancer, including bladder, breast, colon and rectum, kidney, liver, lung, and blood (leukemia, lymphoma, and multiple myeloma).
How Immunotherapy Works for Cancer
Palliative Care
Stage 4 cancer treatment often includes palliative care. The goal of palliative care is to improve quality of life and increase comfort. It is provided by a team of healthcare providers and social workers who work with seriously ill patients.
It is not hospice or end-of-life care. Rather, palliative care is designed to relieve pain, ease stress, and help a person with advanced cancer to cope with symptoms.
Palliative care may be used in stage 4 cancer pain management. One example might be the use of radiation therapy to shrink a tumor that's causing pain or interfering with body functions.
This type of care may also include counseling to help people manage mental and emotional issues that arise with chronic or life-threatening illnesses.
How Palliative Care Is Used in Cancer
Stage 4 Prognosis
In many cases, stage 4 cancer can't be cured. However, this is not true of all cancers. Stage 4 testicular cancer, for example, is highly curable. Lymphomas are highly curable regardless of stage.
How stage 4 cancer is likely to progress (its prognosis) depends on the type of cancer.
Some advanced cancers are very aggressive and fast-growing. Some may have fewer treatment options than others. The outlook for these cases is not likely to be positive.
However, remember that even when stage 4 cancer can't be cured, it isn't necessarily terminal—in other words, it doesn't necessarily mean that the end of life is near.
People with stage 4 cancer often live many years after diagnosis, which is why it's more accurate to describe it as "advanced" or "late-stage."
Survival Rates
One aspect of the prognosis for cancer is called relative survival rate. This refers to the overall percentage of people with a certain diagnosis who are likely to live a specific amount of time. This can be further broken down by stages of cancer.
The rates for advanced cancers are based on statistics published in the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) Program database.
SEER does not use TNM to classify cancers. Instead, it uses three stages—localized, regional, and distant—with "distant" generally meaning the same thing as stage 4. It refers to cancer that has spread far beyond the original site.
| Five-Year Survival Rates for Distant (Stage 4) Cancer | |
|---|---|
| Cancer Type | Relative 5-Year Survival Rate |
| Leukemia* | 65.7% |
| Non-Hodgkin lymphoma* | 63.9% |
| Thyroid | 53.3% |
| Prostate | 32.3% |
| Melanoma (skin) | 31.9% |
| Breast (female) | 30.0% |
| Uterine (endometrial) | 18.4% |
| Kidney, renal pelvic | 15.3% |
| Colon and rectal | 15.1% |
| Bladder | 7.7% |
| Lung and bronchus | 7.0% |
| Pancreatic | 3.1% |
Other factors that affect the prognosis for stage 4 cancer include age, overall health, smoking history, and performance status (PS). PS is how well a person is able to perform everyday tasks. It's based on a classification system that uses a scale of 0 to 5.
Remission
It doesn't happen often, but some cancers can go into remission even if they are stage 4. Breast cancer is one such example.
Remission is when the signs and symptoms of cancer have gone away to the point where doctors declare the patient has been successfully treated.
Remission rates for stage 4 cancer vary. Even if a stage 4 cancer patient goes into remission, the cancer will probably come back. In cases like these, the stage 4 remission may instead be termed no evidence of disease (NED).
Summary
Stage 4 cancer, sometimes called advanced cancer or late-stage cancer, is cancer that has metastasized (spread) to other parts of the body from the original site. This happens when cancer cells break away from the primary tumor and enter the bloodstream or lymphatic system.
Symptoms of stage 4 cancer mainly depend on which organs are affected, though there may be no symptoms at all.
The prognosis for stage 4 cancer, often described in terms of survival rate, typically is not good. However, it does vary among different types of cancer. The treatment goal is not to cure stage 4 cancer, but to ease symptoms, improve quality of life, and try to keep it from progressing.
Survival rates for some cancers are low, but they are improving. For instance, compared to breast cancer average life expectancy statistics of the 1980s, those after 2010 nearly doubled. With next-generation targeted therapies and immunotherapies, those gains are likely to continue.
Frequently Asked Questions
Are stage 4 cancers curable?
Stage 4 cancer is usually considered incurable. However, there are treatment options that can help to prolong survival and improve your quality of life.
Learn More:How Can You Prevent Cancer?
How long can you live with stage 4 liver cancer?
Stage 4 liver cancer is also known as distant liver cancer, which means it’s spread to other organs and lymph nodes. The five-year survival rate is 2.7% for men and 4.2% for women.
Learn More:What You Should Know About Stage 4 Liver Cancer
What is the deadliest type of cancer?
Lung and bronchus cancer cause the most deaths each year. This is partially due to the fact that people often are not diagnosed with the disease until it is already at an advanced stage.
Learn More:The 5 Most Deadly Cancers
15 Sources
Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
National Cancer Institute. Metastatic cancer: When cancer spreads.
American Cancer Society. What is fatigue or weakness?
American Cancer Society. Cancer staging.
National Cancer Institute. Stage IV prostate cancer.
Cancer Treatment Centers of America. Cancer stages.
Bishop AJ, Ensor J, Moulder SL, et al. Prognosis for patients with metastatic breast cancer who achieve a no-evidence-of-disease status after systemic or local therapy.Cancer. 2015;121(24):4324-4332. doi:10.1002/cncr.29681
National Cancer Institute. Palliative care in cancer.
National Cancer Institute.Surveillance, Epidemiology, and End Results Program.
National Cancer Institute. Understanding cancer prognosis.
Eastern Cooperative Oncology Group. ECOG performance status.
National Cancer Institute. Remission.
Caswell-Jin JL, Plevritis SK, Tian L, et al. Change in survival in metastatic breast cancer with treatment advances: Meta-analysis and systematic review.JNCI Cancer Spectr. 2018;2(4):pky062. doi:10.1093/jncics/pky062
American Cancer Society. Understanding advanced and metastatic cancer.
National Cancer Institute: Surveillance, Epidemiology, and End Results (SEER) Program. Liver and intrahepatic bile duct cancer. SEER survival rates by time since diagnosis, 2000-2018.
National Cancer Institute. Cancer stat facts: Common cancer sites.
:max_bytes(150000):strip_icc()/JenniferWelshHeadshotSquaresmall-ceb0be83b8b1421aa2a2c02f4f07ee34.jpg "Does Stage 4 Cancer Mean That It Is Terminal? (2)")
By Jennifer Welsh
Jennifer Welsh is a Connecticut-based science writer and editor with over ten years of experience under her belt.She’s previously worked and written for WIRED Science, The Scientist, Discover Magazine, LiveScience, and Business Insider.
See Our Editorial Process
Meet Our Medical Expert Board
Was this page helpful?
Thanks for your feedback!
What is your feedback?
Related Articles
We Care About Your Privacy
We and our 1609 partners store and/or access information on a device, such as unique IDs in cookies to process personal data. You may accept or manage your choices by clicking below, including your right to object where legitimate interest is used, or at any time in the privacy policy page. These choices will be signaled to our partners and will not affect browsing data.
We and our partners process data to provide:
Store and/or access information on a device. Use limited data to select advertising. Create profiles for personalised advertising. Use profiles to select personalised advertising. Create profiles to personalise content. Use profiles to select personalised content. Measure advertising performance. Measure content performance. Understand audiences through statistics or combinations of data from different sources. Develop and improve services. Use limited data to select content.
