Breast Health: How to Do a Self-Exam and When to See a Doctor

TL;DR: Knowing your breasts is one of the most powerful things you can do for your health. Regular self-exams help you notice changes early, and early detection saves lives. This guide walks you through how to check your breasts step by step, what's normal, what's not, and when to see a doctor.

Most women are told to "check their breasts" at some point, but very few are ever shown how. And even fewer are told what they're actually looking for.

Here's the truth: you don't need to be a doctor to notice something has changed in your own body. You just need to know what's normal for you.

This guide will walk you through everything you need to know about breast health, from how to do a self-exam at home, to understanding which changes are harmless, to recognizing the warning signs that mean you should see a doctor right away.

Why Breast Awareness Matters

Breast cancer is the most commonly diagnosed cancer in women worldwide. According to the World Health Organization, about 2.3 million women are diagnosed with breast cancer every year.

But here's what matters most: when breast cancer is caught early, the five-year survival rate can be over 90%. That's a dramatic difference compared to late-stage detection, where survival rates drop significantly.

Breast awareness simply means knowing how your breasts normally look and feel so that you can spot any changes quickly. It's not about being anxious or constantly worrying. It's about paying attention, the same way you'd notice a new mole on your arm or a lump that wasn't there before.

Early detection gives you more treatment options and better outcomes. That's why this matters.

What Do Normal Breasts Look and Feel Like?

Before you can spot something unusual, you need to know what's normal for you. And "normal" varies a lot from woman to woman.

Here are some things to know:

• Breasts are rarely identical. Most women have one breast that's slightly larger than the other. This is completely normal.
• Breast tissue is naturally lumpy. Especially in the upper outer area near your armpit. This is just how breast tissue feels.
• Your breasts change throughout your menstrual cycle. They may feel swollen, tender, or lumpier in the days before your period, and return to normal afterward.
• Breast size and shape change over time. Pregnancy, breastfeeding, weight changes, hormonal contraception, and aging all affect your breasts. (Breast changes are also common during perimenopause.)
• Nipples come in all shapes. Some point outward, some are flat, and some are inverted (pointing inward). All of these can be normal if they've always been that way.

The key is to get familiar with your own baseline. That way, when something changes, you'll notice it.

How to Do a Breast Self-Exam: Step by Step

A breast self-exam (BSE) is a simple check you can do at home, in front of a mirror or in the shower. It takes about five minutes.

The best time to do it is a few days after your period ends, when your breasts are least likely to be swollen or tender. If you no longer have periods, pick the same day each month so it becomes a habit.

Step 1: Look in the Mirror

Stand in front of a mirror with your arms at your sides. Look at your breasts and notice:

• Any change in size, shape, or symmetry
• Skin changes like dimpling, puckering, or redness
• Changes to your nipples (new inversion, pulling to one side, discharge)

Now raise your arms above your head and look again. Then press your hands firmly on your hips (which tightens your chest muscles) and check once more.

Step 2: Feel Your Breasts While Standing or in the Shower

Many women find it easiest to do this in the shower, when wet skin makes it easier to feel beneath the surface.

• Use your right hand to examine your left breast, and vice versa.
• Use the pads of your three middle fingers (not the tips) and move in small, circular motions about the size of a coin.
• Cover the entire breast in a pattern. An up-and-down pattern (vertical strips from your collarbone to below the breast, and from your armpit to your cleavage) works well.
• Use three levels of pressure: light (for tissue just under the skin), medium (for mid-depth tissue), and firm (for tissue close to the chest wall and ribs).
• Don't forget to check your armpits, where breast tissue extends and lymph nodes (small, bean-shaped glands that filter fluid and fight infection) are located.

Step 3: Feel Your Breasts While Lying Down

Lie on your back with a pillow under your right shoulder. This spreads the breast tissue evenly and makes it easier to feel.

• Use your left hand to examine your right breast using the same circular motion, pressure, and pattern as above.
• Switch the pillow to the other side and repeat for the left breast.

Step 4: Check Your Nipples

Gently squeeze each nipple between your thumb and index finger. Look for any discharge (fluid that comes out when you're not breastfeeding). Note the color if any appears: clear, milky, yellow, green, or bloody.

What If You Find Something?

Don't panic. Most lumps and changes turn out to be completely harmless. But do schedule an appointment with your doctor to have it checked. Write down what you noticed, where it is, and when you first felt it. This helps your doctor assess it quickly.

Common Benign Breast Changes

Not every lump is cancer. In fact, most aren't. Here are some of the most common non-cancerous breast changes:

Breast Cysts

Cysts are fluid-filled sacs that can form in the breast. They feel like smooth, round lumps that may be tender, especially before your period. They are very common in women aged 35 to 50 and often go away on their own. If a cyst is large or uncomfortable, your doctor can drain it with a thin needle (a quick, simple procedure called aspiration).

Fibroadenomas

Fibroadenomas (fy-broh-ad-eh-NO-muhz) are solid, smooth, rubbery lumps made of fibrous and glandular tissue. They're most common in women in their 20s and 30s. They move easily under the skin when you touch them and are almost always harmless. Doctors may recommend monitoring them or removing them if they grow.

Fibrocystic Changes

Fibrocystic (fy-broh-SIS-tik) changes make breasts feel lumpy, rope-like, or thickened. This is extremely common and affects more than half of all women at some point. It's tied to hormonal fluctuations and tends to be worst before your period. It's not a disease and does not increase your risk of cancer.

Fat Necrosis

Fat necrosis (neh-KROH-sis) happens when fatty tissue in the breast is damaged, often after surgery, injury, or radiation. It can form a firm, round lump that may look suspicious on imaging but is not cancerous.

Warning Signs of Breast Cancer

While most breast changes are harmless, some signs should always be evaluated by a doctor:

• A new lump or thickening in your breast or armpit that doesn't go away after your period
• A change in the size or shape of one breast
• Dimpling or puckering of the skin, sometimes resembling the texture of an orange peel (called peau d'orange)
• A nipple that has recently become inverted (turned inward) when it wasn't before
• Nipple discharge that is bloody or happens without squeezing
• Redness, scaling, or thickening of the nipple or breast skin
• Persistent pain in one area of the breast that doesn't come and go with your cycle
• Swollen lymph nodes under the arm or near the collarbone

Having one or more of these signs does not mean you have cancer. But it does mean you should see a doctor promptly. Early investigation is always better than waiting.

Mammograms: What They Are and When to Get One

A mammogram is an X-ray of the breast. It's the most effective screening tool for detecting breast cancer early, often before a lump can even be felt by hand.

How It Works

During a mammogram, each breast is placed on a flat surface and gently compressed between two plates. This compression spreads the tissue out so the X-ray can capture a clear image. It takes just a few seconds per breast. Some women find it uncomfortable, but it shouldn't be intensely painful.

When to Start Screening

Recommendations vary slightly depending on the organization, but general guidelines include:

• Ages 40 to 44: You can choose to start annual mammograms if you want to. Talk to your doctor about your personal risk.
• Ages 45 to 54: A mammogram every year is recommended.
• Ages 55 and older: You can switch to every two years, or continue yearly screening.
• High-risk women: If you have a strong family history of breast cancer, carry a known genetic mutation (like BRCA1 or BRCA2), or had chest radiation before age 30, your doctor may recommend starting screening earlier and adding breast MRI to your routine.

These are the American Cancer Society's general recommendations. Your doctor can help you decide what's right based on your individual risk profile.

Mammograms are also part of a broader approach to preventive health. If you're building a screening routine, our women's health screening checklist covers what tests to consider at different ages.

Breast Cancer Risk Factors

Some risk factors for breast cancer are within your control, and some are not. Understanding them helps you make informed decisions.

Factors You Can't Change

• Being female, Women are far more likely to develop breast cancer than men, though men can get it too.
• Age, Risk increases as you get older. Most breast cancers are diagnosed after age 50.
• Family history, Having a first-degree relative (mother, sister, or daughter) with breast cancer roughly doubles your risk.
• Genetic mutations, Inherited mutations in the BRCA1 and BRCA2 genes significantly increase breast cancer risk. Women with these mutations may also face a higher risk of ovarian cancer.
• Early menstruation or late menopause, Starting your period before age 12 or going through menopause after 55 means longer lifetime exposure to estrogen.
• Dense breast tissue, Women with dense breasts have more glandular and connective tissue, which can both increase risk and make cancer harder to detect on a mammogram.

Factors You Can Influence

• Physical activity, Regular exercise lowers breast cancer risk. Aim for at least 150 minutes of moderate activity per week.
• Alcohol, Even moderate drinking increases risk. The more you drink, the higher the risk.
• Body weight, Being overweight or obese after menopause increases risk, partly because fat tissue produces estrogen.
• Hormone replacement therapy (HRT), Long-term combined HRT (estrogen plus progesterone) used to manage menopause symptoms can slightly increase risk. Discuss the benefits and risks with your doctor.
• Breastfeeding, Women who breastfeed have a slightly lower risk of breast cancer, especially if they breastfeed for a year or longer.

Having risk factors doesn't mean you will get breast cancer. Many women with multiple risk factors never develop it, and some women with no known risk factors do. That's why screening and awareness matter for everyone.

Breast Cancer in Africa: A Growing Challenge

Breast cancer rates across Africa are rising. According to the WHO, breast cancer surpassed cervical cancer as the most commonly diagnosed cancer among women in sub-Saharan Africa. And the outcomes are disproportionately worse.

Late-Stage Diagnosis

In many high-income countries, the majority of breast cancers are detected at an early stage. In much of Africa, the opposite is true. Studies show that 60 to 70% of breast cancer cases in sub-Saharan Africa are diagnosed at advanced stages (stage III or IV), when treatment is more difficult and survival rates are lower.

The reasons include limited access to screening services, too few mammography machines, long distances to health facilities, and a shortage of trained oncologists (cancer specialists).

Cultural Barriers

In some communities, there is deep stigma around cancer. Women may avoid seeking help due to:

• Fear, A cancer diagnosis is sometimes perceived as a death sentence, which discourages women from getting checked.
• Cultural beliefs, In some regions, breast lumps may be attributed to spiritual causes, leading women to seek traditional healers before (or instead of) medical care.
• Modesty and privacy concerns, Some women are uncomfortable with breast examinations, especially by male healthcare providers.
• Cost, Even where services exist, the cost of diagnosis, imaging, and treatment can be prohibitive.

What Needs to Change

Improving breast cancer outcomes in Africa requires investment in screening programs, public education to reduce stigma, training more healthcare workers, and making treatment accessible and affordable. Organizations like the Breast Cancer Association of Nigeria (BRECAN) and the African Organisation for Research and Training in Cancer (AORTIC) are working to address these gaps.

As individuals, we can contribute by spreading awareness, encouraging the women in our lives to get screened, and supporting organizations that are doing this work. Early detection efforts for breast cancer go hand in hand with other screening priorities, like cervical cancer and HPV screening, which faces many of the same access challenges across the continent.

When to See a Doctor

See a doctor if you notice any of the following:

• A new lump, thickening, or hard knot in your breast or armpit
• A change in breast size, shape, or appearance that you can't explain
• Skin dimpling, puckering, or an orange-peel texture
• A nipple that has newly become inverted
• Nipple discharge (especially if it's bloody or happens on its own)
• Persistent breast pain that is not related to your menstrual cycle
• Redness, warmth, or swelling in the breast
• A rash or irritation on or around the nipple

You should also talk to your doctor about your personal screening schedule if you have a family history of breast or ovarian cancer, or if you know you carry a BRCA mutation.

Don't wait for a lump to become large. Don't wait for pain to become unbearable. And don't let anyone tell you that you're overreacting for wanting something checked. You know your body. Trust what it's telling you.

The Bottom Line

Your breasts will change throughout your life, and most of those changes are perfectly normal. But knowing what's normal for you, and noticing when something isn't, could save your life.

A breast self-exam takes five minutes. A mammogram appointment takes an afternoon. The peace of mind, or the early catch, is worth it every time.

References

1. World Health Organization. "Breast Cancer." who.int
2. American Cancer Society. "Breast Cancer Early Detection and Diagnosis." cancer.org
3. American Cancer Society. "Breast Cancer Risk Factors You Cannot Change." cancer.org
4. Breast Cancer Research Foundation. "Breast Cancer Statistics and Resources." bcrf.org
5. PMC. "Breast Cancer in Sub-Saharan Africa: Determinants of Stage at Diagnosis and Diagnostic Delays in Women with Symptomatic Breast Cancer." pmc.ncbi.nlm.nih.gov
6. The Lancet Global Health. "Breast Cancer in Sub-Saharan Africa." thelancet.com
7. Cleveland Clinic. "Breast Self-Exam." clevelandclinic.org

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• Cervical Cancer and HPV Screening: What You Need to Know
• Women's Health Screening Checklist: Tests You Should Know About
• Perimenopause Symptoms: What to Expect and How to Manage Them