How to Do a Breast Self Exam

Breast self-exams are an optional screening tool to check for early signs of breast cancer. Performing these exams monthly can help you familiarize yourself with the look and feel of your breasts so that you can more easily detect changes. Though breast self-exams were once thought to be essential to screening for breast cancer, they are now considered a helpful, optional tool.

Part 1

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Understanding Breast Exams

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Learn why to do them. Some people prefer to perform regular breast self-exams. Regular examinations allow you to detect changes that you may not have otherwise noticed, which can help you detect any cancer; however, self-exam should never take the place of mammograms, since these are considered a more accurate test.
- When you do an exam, you are looking for pre-cancerous lesions or early signs of cancer before it has spread. At this stage, you can treat it before it grows to be life-threatening, which lowers your risk of death from breast cancer. In addition to self-exams, doctors use professional manual exam and/or screening using a mammogram, which is a kind of x-ray specifically used on breasts that can show masses, calcifications, or other signs of cancer.^{[1]XTrustworthy SourceCleveland ClinicEducational website from one of the world's leading hospitalsGo to source}
- No study has proven that breast self-exams decrease the risk of breast cancer death, which is why many experts do not recommend them. Because of this, many choose not to do them, but they can still be helpful.^{[2]XTrustworthy SourcePubMed CentralJournal archive from the U.S. National Institutes of HealthGo to source}
Who should perform breast self-examinations? Everyone should perform breast exams, regardless of sex. While the risk of breast cancer is lower in males, it can occur at a later age for them, and may be discovered later when it's more difficult to treat.
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Know if you are at risk. There are groups of individuals who are more at risk for breast cancer. There are genetic reasons and events in your medical history that can put you more at risk. These include:^{[3]XTrustworthy SourceAmerican Cancer SocietyNonprofit devoted to promoting cancer research, education, and supportGo to source}
- A mutation in a breast cancer gene called BRCA (in females) or BRCA2 (in males)
- Previous history of breast cancer in your medical history.
- A family history of breast cancer, especially at a younger age
- People who had radiation of the chest between 10 and 30 years of age.
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Start at the right time. Breast self-exams should begin as early as age 20. You should check your breasts once a month so you can note changes over time.^{[4]XResearch source} In addition to breast self-exams, yearly mammogram screenings should begin no later than age 45, though you can start as early as age 40.
- You can continue yearly mammograms starting at 55, or you can go down to once every two years.^{[5]XTrustworthy SourceAmerican Cancer SocietyNonprofit devoted to promoting cancer research, education, and supportGo to source}
- If you are a higher risk of breast cancer, you may begin screening at age 40. Your doctor may order tests more frequently if you are more at risk of developing breast cancer.
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Have a clinical breast exam (CBE). In addition to your monthly self-exams, your doctor should perform a breast exam at least once a year during your annual physical or gynecological check-up. Your doctor will first perform a visual inspection of both your breast and nipples. They will then do a physical examination of them similar to your self-exam, feeling all the breast tissue and the lymph node tissue under both of your arms.
- They look for any puckering or changes of the skin around the breast, abnormal discharge or orientation of the nipple, or any lumps, which could signal underlying cancers.^{[6]XTrustworthy SourceBreastCancer.orgPatient-focused nonprofit organization providing resources for those affected by breast cancerGo to source}
Sometimes, a self-exam will not be enough. If you are especially high-risk, such as an increased and long family history of the disease, your doctor may recommend a breast MRI. MRIs are more sensitive tests and show more detailed scans. However, they often lead to more false positives, which can lead to unneeded biopsies.^{[7]XResearch source}

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Performing a Breast Self-Exam

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Perform the test monthly. If you are performing breast self-exams, try to do them once a month, at around the same time of the month. The best time to do this is about one week after the end of your period. This is when your breasts are least tender and lumpy. During your period, your breasts can be lumpy because of hormone fluctuations.^{[8]XTrustworthy SourceCleveland ClinicEducational website from one of the world's leading hospitalsGo to source}
- If you don’t have regular periods, do the self-exam on the same say every month.
- If you don’t want to do it monthly, you can do an exam less often. It just depends on what you are comfortable with.^{[9]XResearch source}
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Perform a visual exam. One way to look for issues with your breasts is to look for changes in their appearance. Stand in front of a mirror without your shirt and bra. Place your hands on your hips. Press firmly down on your hips to engage the muscles, which will help you notice changes. Take note of any redness or scaling of the skin and nipples, any changes to the size, contour, or shape, and any dimpling or puckering to the area.
- Check under your breasts as well. Turn side to side, lifting your breasts up so you can see underneath and on the sides of them.
- Also look under your arm, holding your arm only part of the way up. This will prevent the muscles in your underarm from contracting too much, which will distort your perception of the area.^{[10]XResearch source}
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Get into position. The best position to perform a physical self-exam is lying down. This is due to the way the breast tissue flattens out evenly over your chest, making the tissues easier to examine. Lie down on your bed or couch with your right arm lifted above your head.
- Some experts suggest doing the examination while standing, or doing one standing in addition to lying down in order to make sure each layer of tissue is examined thoroughly. This can easily be done in or after a shower. A soapy hand makes it easier to slide across the skin. You can choose which works best for you.^{[11]XResearch source}
Using your left hand, feel around your right breast. Start under your right armpit and press down gently but firmly at first. This will help you feel the first layer of tissue under your breast. Make small circles with your three middle fingers using the pads of your fingers, not your fingertips. Move your finger circles down the breast tissue and back, kind of like a pattern you make mowing a lawn, until you cover the whole breast and underarm area.^{[12]XTrustworthy SourceMedlinePlusCollection of medical information sourced from the US National Library of MedicineGo to source}
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Repeat with more force. Once you have moved over your whole breast, move in the same pattern again, making sure to press harder this time. This will reach further into your tissue and reach the under layers of tissue.^{[13]XResearch source}
- It is normal to feel your ribs as you do this.
- It is normal to feel a thicker area nearer and under your nipples where milk ducts lie.
Once you have finished cataloging the breasts, you need to check your nipples for any irregularities. Using light but firm pressure, squeeze your nipple between your thumb and forefinger. Note any lumps or if it expels any discharge.^{[14]XResearch source}
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Switch to the other breast. Once you have made your way across your entire right breast and nipple, repeat the procedure from start to finish on your left breast. Switch the arms behind your head and use your right hand to examine your left breast.
- The same procedure can be used to perform an examination while standing.^{[15]XResearch source}
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Contact your doctor. If you feel any lumps, feel for the texture of them. Abnormal lumps of concern tend to feel firm or gritty, have irregular edges, and can feel as if they are stuck to your chest. If you feel anything that feels like this, call you doctor for an appointment as soon as you can to have it checked.
- Many people have a hard time knowing which lumps in a breast are normal and which ones aren’t. One purpose of regular breast self exams is to get an understanding of which lumps are normal and which are new. If you are having trouble figuring it out, ask your doctor to show you what is normal and what isn’t. Your doctor may have a plastic or rubber model in their office that demonstrates this.
- If the lump is small and doesn’t feel this way, you still should contact your doctor to make sure there is nothing wrong. There is no need to panic. Eight out of ten lumps are not cancerous.^{[16]XResearch source}

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Breast cancer occurs in males as well, so men should also conduct these self-screenings; however, breast cancer is 100 times more common in females.^{[17]XTrustworthy SourceAmerican Cancer SocietyNonprofit devoted to promoting cancer research, education, and supportGo to source}
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Transgender individuals should also perform self-examinations. While transgender men on testosterone have a lower (but still existing) risk for breast cancer compared to cisgender women, transgender women on estrogen have a slightly increased risk compared to cisgender men.^{[18]XResearch source}
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Self-exams alone are not sufficient to properly detect breast cancer. They should always be combined with regular mammogram screenings. Remember that mammograms can detect breast cancer before a visible lump can be felt or seen. Mammograms are often followed with ultrasound.
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