How to Do a Breast Self-Exam (and Which Changes to Get Checked)

Woman's hands holding a pink ribbon against a cream knit sweater, a symbol of breast cancer awareness

By Sofía CastilloPublished October 20, 2026

October turns everything pink, and that's a good thing if it gets us to do something useful all year: know our own breasts. You don't need to be an expert or spend half an hour on it. Here's how to do a breast self-exam step by step, what normal breast tissue feels like, which changes to get checked and why your mammogram is still the test that matters most.

The short answer: once a month, a few days after your period ends (or on the same date each month if you don't have periods), look at your breasts in a mirror, then feel each breast and armpit with the flat pads of three fingers using light, medium and firm pressure. A new lump that is still there after your next period, or after 4 to 6 weeks if you don't menstruate, needs a check. Skin dimpling, a newly inverted nipple or bloody discharge needs one right away.

In this article

Do doctors still recommend breast self-exams?

Here's what changed. Large studies found that strict monthly self-exams didn't reduce breast cancer deaths in women at average risk, so the American College of Obstetricians and Gynecologists (ACOG), Mayo Clinic and Memorial Sloan Kettering no longer recommend them as a screening tool.

What they recommend instead is breast self-awareness: knowing how your breasts normally look and feel so you notice changes early, even small ones. A step-by-step exam is still a good way to learn that, especially at first. If a monthly routine reassures you, keep it. If not, paying attention in the shower or while you get dressed is enough. What matters is noticing changes and reporting them quickly.

And this isn't just for women with a family history. According to the World Health Organization, about 80% of breast cancers occur in women with no risk factor other than being female and getting older.

When to do it

If you get periods, the best time is a few days after your period ends, when your breasts are least swollen and tender. Right before a period, breast tissue often feels denser or lumpier, which can be confusing. If you don't have periods because of menopause, pregnancy or birth control that stops them, pick the same day each month, like the 1st. Not sure your cycle is regular? Here's how many days late is normal for a period.

How to do a breast self-exam, step by step

1. Look in the mirror

Without a bra and in good light, look at your breasts in three positions: arms at your sides, arms raised overhead, and hands pressed firmly on your hips to flex your chest muscles. Look for:

changes in size or shape, or new unevenness;
dimpling, puckering or skin that looks like an orange peel;
redness, scaling or crusting of the skin or nipple;
a nipple that has newly turned inward;
fluid coming from a nipple without squeezing.

2. Feel your breasts lying down

Lying down spreads the breast tissue out, so it's easier to feel. Put a small pillow under your right shoulder and your right arm behind your head. Using the pads (not the tips) of the three middle fingers of your left hand, make dime-sized circles with three levels of pressure at each spot: light for tissue near the skin, medium for the middle and firm until you feel your ribs.

Follow a pattern so you don't miss anything. The vertical pattern is the easiest: start in your armpit, move down little by little to below your breast, shift a finger-width toward the middle and move back up, like mowing a lawn in rows, until you reach your breastbone. Cover the area from your collarbone to the top of your belly. Then switch sides.

3. Repeat standing up or in the shower

Soapy skin lets your fingers glide, which is why many women like to do this step in the shower. Use the same motions and include your armpit and the area around the nipple. Take a few minutes per side. If you're not sure how hard to press, ask your OB-GYN or primary care clinician to show you at your next visit. It's a completely normal request.

What's normal to feel

Lumpy or rope-like tissue, especially in the upper outer area near your armpit.
A firm ridge of tissue along the lower curve of each breast.
One breast being slightly bigger than the other.
Tenderness or lumpiness that changes with your cycle and fades after your period.

Most lumps turn out to be benign, such as cysts, fibroadenomas or normal hormonal changes. But only a clinician can tell for sure, which is exactly why knowing your normal helps: it makes anything different stand out.

Should a breast self-exam hurt?

No. If your breasts feel sore the next day, the usual causes are pressing hard with your fingertips, pinching or grabbing tissue to "find" something, or checking every day. Pinching normal tissue between your fingers can make it feel like a lump, and checking daily makes it harder to notice real change, because you end up comparing today with yesterday instead of with last month.

The fix: use the flat pads of three fingers, make small circles without lifting your fingers off the skin, and stop at once a month. If one spot keeps hurting for more than two weeks, see the table below.

Lumpy breasts, dense breasts and exam anxiety

Lumpy (fibrocystic) breasts make it harder to know what you're feeling, but they're common and not a disease. What helps is a baseline. The first time, take a moment to notice where your usual lumpy areas are, for example "upper outer left, like a rope." You can sketch them on a simple drawing. Each month, you're looking for something that differs from that map and from the same area on the other breast.

Dense breasts are something a mammogram shows, not something you can feel. About half of US women over 40 have dense tissue. It can hide cancers on a mammogram and is linked to a higher risk. Since September 10, 2024, an FDA rule requires mammography facilities to tell you in writing whether your breasts are dense. If yours are, ask your doctor whether you need extra imaging, such as ultrasound or MRI.

If checking makes your anxiety worse, you don't have to follow a formal routine. ACOG's approach, breast self-awareness, is enough: notice how your breasts look and feel in the shower or while you dress, and report changes. Many women with health anxiety find it easier to see a clinician once to learn their normal than to check over and over at home.

When to see a doctor

Make an appointment, without waiting for your annual visit, if you notice:

a new lump or thickening in your breast or armpit, especially one that's hard, doesn't move or is still there after your period;
dimpling, pulling in of the skin or an orange-peel texture;
a nipple that newly turns inward, or crusting or scaling on the nipple that doesn't heal;
nipple discharge without squeezing, especially if it's bloody or from one side only;
redness, warmth or swelling of one breast;
pain in one specific spot that doesn't change with your cycle.

Use this table to decide how fast to act. It follows the timelines Mayo Clinic and Cleveland Clinic give for breast lumps and breast pain:

What you notice	What to do
Lumpiness or tenderness in both breasts that comes and goes with your cycle	Normal. Check again a few days after your period.
A small, soft lump that moves, found in the week before your period	Check again a few days after your period. If it's still there, or if it's changed size or shape, book an appointment. If you don't have periods, book one if it's still there after 4 to 6 weeks.
A hard lump with irregular edges that doesn't move, or one that is growing	Book an appointment now. Don't wait for your next cycle.
Dimpling or orange-peel skin, a nipple that newly turns inward, crusting on the nipple, discharge without squeezing (especially bloody or from one side), or a new lump in your armpit	Book an appointment now.
A red, warm, swollen breast, especially with fever or while breastfeeding	Get seen the same day. It's usually an infection (mastitis), but if the redness doesn't clear with treatment, go back.
Pain in one spot that lasts more than 2 weeks, gets worse or keeps you from your daily routine	Book an appointment.
Any new lump after menopause	Book an appointment.

A rare type of breast cancer, inflammatory breast cancer, can look like an infection: the breast turns red, swollen and warm, often with no lump. That's why redness that doesn't improve with treatment needs a second look. Getting a lump checked that turns out to be benign isn't overreacting. It's exactly what you should do.

Pregnancy, breastfeeding, implants and men

Pregnant or breastfeeding: breasts change a lot, and a tender lump is often a blocked milk duct that eases with feeding or warmth. A lump that doesn't go away, keeps growing or comes with red, hot skin and fever still needs a check. Pregnancy is not a reason to wait.
Implants: ask your surgeon or clinician to show you where the edge of the implant is, so you don't mistake it for a lump. Mammograms still apply, with extra views that the technologist takes around the implant.
After surgery, a biopsy or radiation: scar tissue changes how the area feels. Learn your new normal once it has healed.
Men: about 1 in 100 breast cancers in the US is found in a man. A firm lump under or around the nipple, nipple changes or discharge are reasons to see a doctor.

A self-exam doesn't replace a mammogram

A mammogram can find cancers before they can be felt, which is why it's the screening test. In the US, current advice looks like this:

USPSTF (2024): a mammogram every 2 years from age 40 to 74 for women at average risk.
American Cancer Society: the option to start yearly mammograms at 40, yearly from 45 to 54, then every 1 or 2 years from 55 for as long as you're in good health.

If your mother, sister or daughter had breast or ovarian cancer, if you carry a mutation such as BRCA, or if you had chest radiation at a young age, your risk may be higher. You may need to start earlier or add other tests, so talk with your doctor. The same goes if your mammogram letter says you have dense breasts.

What you can do for your breast health

Not everything is in your control, and no one is to blame for breast cancer. But some habits lower your risk: limiting alcohol, staying at a healthy weight, moving every day and not smoking. Add knowing your breasts, keeping up with your mammograms and reporting any change, and you're doing what makes the biggest difference.

Frequently asked questions

How often should you do a breast self-exam?

If it helps you, once a month, a few days after your period ends, or on the same day each month if you don't have periods. Experts now focus less on a strict schedule and more on knowing your breasts, so the key is noticing anything new and getting it checked quickly.

At what age should you start breast self-exams?

There's no official starting age. Many clinicians suggest getting familiar with your breasts in your 20s so you learn what's normal for you. Screening mammograms start later, at 40 under current USPSTF advice, or earlier if your doctor says your risk is higher than average.

What does a breast cancer lump feel like?

It's often hard, irregular and doesn't move much when you push it, and it frequently doesn't hurt. But not always: some cancerous lumps are soft, round or tender. That's why you can't judge a lump by touch, and any new lump that doesn't go away after your period should be checked.

Is it normal for breasts to feel lumpy?

Yes. Breast tissue is naturally lumpy, and it often feels lumpier before your period. What matters is change: a new lump, one that feels harder or different from the rest of your breast, or one that's still there after your cycle. In that case, get it checked, even though it's most likely benign.

What should I do if I find a lump in my breast?

Take a breath, because most lumps are benign. Note where it is and how it feels, and call your doctor or OB-GYN. If you get periods and the change is small, you can see whether it fades after your period. If it's hard or growing, or the skin dimples or there's bloody discharge, go in without waiting.

Can a breast self-exam replace a mammogram?

No. A mammogram can find cancers too small to feel, and it's the screening test shown to reduce breast cancer deaths. Knowing your breasts helps you catch changes between mammograms, but it doesn't replace the screenings recommended for your age and risk level.

Should a breast self-exam hurt?

No. A self-exam shouldn't be painful. Soreness afterward usually means you pressed hard with your fingertips, pinched tissue or checked too often. Use the flat pads of three fingers in small circles, once a month. If one spot hurts for more than two weeks, or gets worse, have it checked.

This article is for informational purposes and doesn't replace advice from a healthcare professional. Reviewed by Sofía Castillo on October 20, 2026.

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