A breast self-exam takes about five minutes and involves two parts: looking at your breasts in a mirror for visible changes, then feeling the tissue with your fingertips to check for lumps or anything unusual. The goal is to learn what’s normal for you so you can spot changes early.
The American Cancer Society doesn’t include self-exams in its routine screening guidelines, noting there’s limited evidence they help find breast cancer early in women who also get regular mammograms. But the organization still encourages “breast self-awareness,” meaning you should know how your breasts normally look and feel and report any changes promptly. Many people find a monthly self-exam is the most practical way to build that familiarity.
When to Do It
If you menstruate, the best time is about a week after your period starts. Breast tissue tends to be less swollen and tender at that point in your cycle, making it easier to feel what’s actually there. If you’re postmenopausal, pregnant, or don’t have regular periods, just pick the same day each month so it becomes a habit. Starting around age 25 is a reasonable time to begin monthly self-checks.
Step 1: Visual Check in the Mirror
Stand in front of a mirror with your shirt and bra off, in good lighting. You’ll look at your breasts in three positions:
- Arms at your sides. Look at the overall shape, size, and symmetry of both breasts. Note anything new: swelling, dimpling, skin texture changes, or a shift in the position of your nipples.
- Arms raised above your head. Look for the same changes. Lifting your arms stretches the skin and can reveal dimpling or pulling that isn’t visible otherwise.
- Hands on your hips, chest muscles flexed. Press your palms into your hips and squeeze inward to engage your chest muscles. Look again for any puckering, dimpling, or asymmetry.
What you’re watching for: skin that looks like orange peel (puckered or dimpled), redness or a rash, a nipple that has recently turned inward, or any visible difference between the two sides that’s new. Most people’s breasts aren’t perfectly symmetrical, so you’re looking for changes from your own baseline, not perfection.
Step 2: Feeling the Tissue
Many people find it easiest to do this lying down, since gravity spreads the breast tissue more evenly across your chest. Place a pillow under the shoulder on the side you’re examining, and raise that arm behind your head. Use the pads of your three middle fingers on the opposite hand, not the tips. Keep your fingers flat and together.
You need to cover the entire breast, and the boundaries are larger than most people expect. Work from your collarbone down to the bottom of your bra line, and from your breastbone all the way into your armpit. Breast tissue extends into the armpit area, and skipping that zone means missing a common location for changes.
Use Three Levels of Pressure
At each spot, press with three different levels of pressure before moving on. Light pressure checks the tissue just beneath the skin. Medium pressure reaches the middle layers. Firm pressure gets down to the tissue closest to your ribs and chest wall. You should be able to feel your ribs with the deepest pressure. Using only one level of pressure means you could miss something deeper or closer to the surface.
Pick a Pattern and Stick With It
The specific pattern you use matters less than being consistent and thorough. Three common approaches work well:
- Vertical strips. Start at the armpit and move your fingers in small circles down to the bottom of the breast, then shift over slightly and move back up. Continue in parallel lines until you’ve covered the entire area.
- Circular/spiral. Start at the outer edge of the breast and work inward in increasingly smaller circles until you reach the nipple.
- Wedge. Imagine your breast as a pie divided into wedges. Examine each wedge from the outer edge inward to the nipple, then move to the next section.
Use the same pattern every month. Consistency helps you recognize what’s changed versus what’s simply part of your normal tissue. After checking the breast tissue, gently squeeze the nipple and note any discharge.
Some people also like to do a quick check in the shower, since soapy, wet skin makes it easier for your fingers to glide and detect texture changes underneath. This can supplement the lying-down exam but shouldn’t replace it, since the tissue spreads out more evenly when you’re on your back.
What Normal Tissue Feels Like
Breast tissue is naturally bumpy. Some people have lumpier breasts than others, and this is completely normal. If both breasts feel similar, that’s a good sign that what you’re feeling is just your baseline texture. Hormonal changes throughout your cycle can also make tissue feel temporarily thicker or more tender.
Fibrocystic changes, which are tiny fluid-filled sacs and rubbery tissue, are common and benign. They often feel like small, round, moveable lumps that may come and go with your menstrual cycle. Getting to know this texture through monthly exams is exactly the point: once you know what your normal “lumpy” feels like, something genuinely different will stand out.
What a Suspicious Lump Feels Like
Not all lumps are cancer. Most aren’t. But certain characteristics are worth noting. A lump that feels hard, like a small rock, and feels distinctly different from the surrounding breast tissue deserves attention. Early on, a cancerous lump is often still moveable, so don’t assume something is harmless just because you can push it around. Over time, concerning lumps tend to become more fixed in place.
The key question isn’t whether you feel a lump. It’s whether something feels different from the rest of your breast tissue, or different from the same spot on the other side. A lump that appears on one side but not the other, or a spot that feels harder or thicker than the tissue around it, is worth getting checked.
What to Do If You Find Something
Schedule an appointment for a breast physical exam. Your provider will do a thorough check, feeling the tissue around your collarbone and armpit, examining the skin and nipples, and comparing both sides. If something needs a closer look, the next step is usually a mammogram or ultrasound. If you have dense breast tissue, which makes mammograms harder to read, an ultrasound or MRI may give a clearer picture.
In many cases, imaging alone can confirm that a lump is benign. Sometimes a biopsy is needed to be sure, which involves taking a small tissue sample for analysis. The process from “I found something” to “here’s what it is” typically moves quickly, especially when you’re proactive about scheduling that first appointment.
Beyond the Self-Exam
A monthly self-exam is one layer of awareness, not a replacement for mammography. Screening mammograms remain the most effective tool for catching breast cancer early, particularly tumors too small to feel by hand. Think of self-exams as a way to catch changes between screenings, especially changes that develop quickly. The two approaches work best together: mammograms catch what your fingers can’t, and your fingers catch what happens in the months between scheduled imaging.