What are the risk factors for breast cancer?

What are the risk factors for breast cancer?

A risk factor is anything that affects your chance of getting a disease, such as cancer. Different cancers have different risk factors. For example, exposing skin to strong sunlight is a risk factor for skin cancer. Smoking is a risk factor for cancers of the lung, mouth, larynx (voice box), bladder, kidney, and several other organs.

But risk factors don't tell us everything. Having a risk factor, or even several, does not mean that you will get the disease. Most women who have one or more breast cancer risk factors never develop the disease, while many women with breast cancer have no apparent risk factors (other than being a woman and growing older). Even when a woman with risk factors develops breast cancer, it is hard to know just how much these factors may have contributed to her cancer.

There are different kinds of risk factors. Some factors, like a person's age or race, can't be changed. Others are linked to cancer-causing factors in the environment. Still others are related personal behaviors, such as smoking, drinking, and diet. Some factors influence risk more than others, and your risk for breast cancer can change over time, due to factors such as aging or lifestyle.
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!!!Did you know?

• Women with breast implants can do BSE. It may be helpful to have the surgeon help identify the edges of the implant so that you know what you are feeling. There is some thought that the implants push out the breast tissue and may actually make it easier to examine. Women who are pregnant or breast-feeding can also choose to examine their breasts regularly.
• Beginning in their 20s, women should be told about the benefits and limitations of breast self-exam (BSE). Women should know how their breasts normally look and feel and report any new breast changes to a health professional as soon as they are found. Finding a breast change does not necessarily mean there is a cancer.
• A woman can notice changes by being aware of how her breasts normally look and feel and by feeling her breasts for changes (breast awareness), or by choosing to use a step-by-step approach (see below) and using a specific schedule to examine her breasts.

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Breast Cancer Tests: Screening, Diagnosis, and Monitoring

There's a whole world of testing that goes along with taking care of your breasts. Although medical tests can be nerve-wracking — especially when it comes to waiting for results — they are essential in keeping your breasts healthy and getting you proper care if you develop breast cancer.

In this section, you’ll learn about the different types of breast cancer tests, such as mammogram, breast MRI, and biopsy. You can also learn about getting your test results and keeping track of your medical records.more

Breast physical exam

Some women wonder why they need to have their doctors examine their breasts when they're doing regular self-exams on their own. While it's true that most lumps are found by women themselves, a breast exam by a doctor helps find lumps that women may miss. Sometimes, the abnormality in a breast can be so difficult to feel that only someone with experience would recognize it. Lumps, thickening, asymmetry—changes in your breasts that you may not notice or think are "normal"—may be picked up on by people who examine many breasts regularly.

Studies show that regular breast self-exams, combined with an annual exam by a doctor, improves the chances of detecting cancer early. Source

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