Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein. Breast cancer occurs when abnormal cells grow out of control in one or both breasts. These cancer cells can spread (metastasize) to nearby tissues and form a mass, called a tumor. The cells can spread within the breast, to nearby lymph nodes and other tissues, and to other parts of the body. The most common type of breast cancer starts in the ducts of the breast. It's called ductal carcinoma. The second most common type is lobular carcinoma. It starts in the lobes of the breast. Some breast cancer is a mix of both ductal and lobular carcinoma. When abnormal cells in the ducts or lobes of the breast haven't spread, they are said to be noninvasive, or "in situ" (say "in-SY-too"). These include: Breast cancer can occur in anyone. And it can occur after a breast reduction or a mastectomy. There are also some less common types of invasive breast cancer, such as inflammatory breast cancer and male breast cancer. Doctors don't know exactly what causes breast cancer. But some things are known to increase the chance that you will get it, such as your age and health history. The most common symptom is a painless lump or thickening in the breast or underarm. But early breast cancer is often found on a mammogram before a lump can be felt. The size, shape, or appearance of the breast may also change. Or the nipple may turn in, look scaly, or leak fluid. Depending on your age and risk factors, the doctor may recommend that you have an ultrasound or a mammogram. A mammogram can often find a lump that is too small to feel. During a regular physical exam, your doctor can check your breasts for lumps or changes. You also may find a lump on your own. If there are concerns, the doctor will check to see if there is cancer by looking at a sample of cells (biopsy). The results of the biopsy help your doctor know if you have cancer and what type of cancer it is. You may have other tests to find out the stage of the cancer. The stage is a way for doctors to describe how far the cancer has spread. Treatment for breast cancer is based on the type and stage of the cancer and other things, such as your overall health. The main treatment is surgery to remove the cancer. Other treatment options may include radiation therapy, chemotherapy, hormone therapy, or targeted therapy. The top risk factors for breast cancer are: Other risks include: BRCA1 and BRCA2 are genes that normally help control cell growth. But a rare, inherited change (mutation) in one of these genes makes you much more likely to get breast, ovarian, and some other cancers. Genetic testing can show if you have gene changes that increase your risk for these cancers. Your risk for breast cancer increases as you get older. There is no known way to prevent breast cancer. But with some cancers, finding them early can increase your chances of successful treatment. Here are some steps you can take to help reduce your risk: You can also help take care of yourself and reduce your risk of cancer if you: People who do a gene test and find out that they have a high breast cancer risk have some options to manage their cancer risk. If you have a BRCA gene change, talk with your doctor about how you can manage your cancer risk. The first sign of breast cancer is often a painless lump. But early breast cancer is often found on a mammogram before a lump can be felt. Other symptoms of breast cancer may not appear until the cancer is more advanced. These include: Symptoms such as changes in the skin of the breast or the nipple may be a sign of inflammatory breast cancer. Often breast cancer is found in an early stage, and the cancer can be removed with surgery. In some cases, breast cancer may grow and spread to nearby tissues and lymph nodes. Advanced breast cancer can spread to the bones, liver, and brain. Your doctor will look at the stage of the cancer to see how far it has spread. Your doctor may also do tests on tissues removed during surgery to look for hormone receptors and gene changes. These test results, and whether your cancer has spread, will help guide your treatment options. Call your doctor if you have: If you have been diagnosed with cancer, be sure to follow your doctor's instructions about calling when you have problems, new symptoms, or symptoms that get worse. Depending on your age and risk factors, the doctor may recommend that you have an ultrasound or a mammogram. This test can often find a lump that is too small to feel. The earlier breast cancer is found, the more easily and successfully it can be treated. During a regular physical exam, your doctor can check your breasts for lumps or changes. You also may find a lump on your own. If there are concerns, the doctor will check to see if there is cancer by looking at a sample of cells (biopsy). The results of the biopsy help your doctor know if you have cancer and what type of cancer it is. If your doctor thinks that you have breast cancer, you may have other tests. They include: Knowing your personal risk for breast cancer can help you decide about screening. Experts differ on when to start and how often to have mammograms. Your doctor can help you make a plan based on your risk. The main test to screen for breast cancer is a mammogram. This includes a digital mammogram (DM) or a 3D mammogram (also called digital breast tomosynthesis, or DBT). An MRI of the breast or a clinical breast exam (CBE) may be used if you have a high risk of breast cancer. Treatment for breast cancer is based on the type and stage of the cancer and other things, such as your overall health. The main treatment is surgery to remove the cancer. Other treatment options may include radiation therapy, chemotherapy, hormone therapy, targeted therapy, immunotherapy, or a clinical trial. Your doctor will talk with you about your options and then make a treatment plan. Some people use complementary therapies along with medical treatment. Therapies like acupuncture or massage may help you cope with the symptoms and stress of cancer. Talk with your doctor about any of these options you would like to try. Most people have surgery. The types of breast cancer surgery are: During breast surgery, the doctor may remove one or more nearby lymph nodes to check them for cancer. This may include: Your doctor will remove all the cancer that can be found. Then you may have other treatments to kill any cancer cells that may be left. Some people choose to have breast reconstruction after cancer surgery. A surgeon can reshape or rebuild your breast using implants or your own tissue. You can talk with your doctor about your options. Radiation therapy uses high-dose X-rays to destroy cancer cells and shrink tumors. It is usually given after breast-conserving surgery. It may be given after mastectomy. Radiation therapy is used after surgery to help reduce the chance that the cancer will come back. Radiation therapy can be given in different ways. It's often given by a machine outside the body (external radiation). Or it may be given by placing substances inside the body (internal radiation). Medicines used to treat breast cancer include: Palliative care is a type of care for people who have a serious illness. It's different from care to cure your illness, called curative treatment. Palliative care provides an extra layer of support that can improve your quality of life—not just in your body, but also in your mind and spirit. Sometimes palliative care is combined with curative treatment. The kind of care you get depends on what you need. Your goals guide your care. You can get both palliative care and care to treat your illness. You don't have to choose one or the other. Palliative care can help you manage symptoms, pain, or side effects from treatment. It may help you and those close to you better understand your illness, talk more openly about your feelings, or decide what treatment you want or don't want. It can also help you communicate better with your doctors, nurses, family, and friends. It can be hard to live with an illness that cannot be cured. But if your health is getting worse, you may want to make decisions about end-of-life care. Planning for the end of your life does not mean that you are giving up. It is a way to make sure that your wishes are met. Clearly stating your wishes can make it easier for your loved ones. Making plans while you are still able may also ease your mind and make your final days less stressful and more meaningful. Some people use complementary therapies along with medical treatment. They may help relieve the symptoms and stress of cancer or the side effects of cancer treatment. Therapies that may be helpful include: Talk with your doctor about any of these options you would like to try. And let your doctor know if you are already using any complementary therapies. They are not meant to take the place of standard medical treatment. But they may help you feel better and cope better with treatment. Relationships take on new importance when you're faced with cancer. Your family and friends can help support you. You may also want to look beyond those who are close to you. Your feelings about your body may change after treatment for breast cancer. For example, you may find it hard to adjust to how your body looks after surgery. These and other physical changes may affect your body image. Or they may affect your desire to be intimate with a partner. Everyone has their own reaction to the challenges of cancer treatment. If you have concerns, try to talk openly with your partner, if you have one. Or discuss your feelings with your doctor or nurse. Your care team may be able to help. Or they may refer you to counseling or a support group. Talking with others who've had similar feelings can be very helpful. Current as of: October 25, 2024 Author: Ignite Healthwise, LLC Staff Current as of: October 25, 2024 Author: Ignite Healthwise, LLC Staff Clinical Review Board This information does not replace the advice of a doctor. Ignite Healthwise, LLC disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use and Privacy Policy. Learn how we develop our content. To learn more about Ignite Healthwise, LLC, visit webmdignite.com. © 2024-2025 Ignite Healthwise, LLC.Breast Cancer
What is breast cancer?
What causes it?
What are the symptoms?
How is it diagnosed?
How is breast cancer treated?
What Increases Your Risk
BRCA gene change and risk for breast cancer
Lowering Your Risk
Inherited breast cancer risk
Symptoms
What Happens
When to Call a Doctor
Exams and Tests
Diagnostic tests
Screening tests for breast cancer
Treatment Overview
Surgery
Radiation
Medicines
Supportive Care
End-of-life care
Self-Care
Complementary Treatments
Getting Support
Adjusting to body changes after treatment
Related Information
Credits
Clinical Review Board
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn more about their health. Our providers may not see and/or treat all topics found herein. Current as of: October 25, 2024 Author: Ignite Healthwise, LLC Staff Clinical Review BoardBreast Cancer
All Ignite Healthwise, LLC education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

