Checking your breasts for cancer involves two parts: looking in a mirror for visible changes and feeling the tissue with your fingers for lumps or thickening. The whole process takes about five minutes once you know the steps, and the goal isn’t to diagnose anything yourself. It’s to learn what’s normal for your body so you notice when something changes.
When to Do Your Check
If you menstruate, the best time is the week after your period ends. Hormonal shifts during your cycle can make breast tissue temporarily swollen, tender, or lumpy, which makes it harder to tell what’s normal. Checking at the same point each month gives you a consistent baseline. If you’re postmenopausal, pregnant, or don’t have a regular cycle, pick any day that’s easy to remember and stick with it monthly.
The Visual Check: What to Look For
Stand in front of a mirror with enough light to see your chest clearly. You’ll look at your breasts in three positions:
- Arms at your sides. Look for changes in breast shape, swelling, dimpling in the skin, or any shift in nipple position.
- Arms raised above your head. Look for the same changes. Lifting your arms stretches the skin and can reveal pulling or puckering that isn’t visible otherwise.
- Hands on your hips, chest muscles flexed. Press your hands firmly into your hips to tighten the muscles underneath. Check again for the same signs.
The specific visual red flags worth noting include skin that looks dimpled or textured like an orange peel, rough or uneven patches, redness or discoloration (pink, red, or purple areas), a nipple that has recently turned inward, any sore or rash on the nipple, and a noticeable change in the size or shape of one breast compared to the other. These don’t automatically mean cancer. Inflammatory breast cancer, for example, can cause skin discoloration, while other types may cause dimpling or scaling. But any new visual change that wasn’t there before is worth reporting to a doctor.
The Physical Check: How to Feel for Lumps
You can do this in the shower (soapy skin makes it easier for your fingers to glide) or lying down on your back with a pillow under the shoulder of the side you’re examining. Use your right hand to check your left breast and your left hand to check your right breast.
With the pads of your three middle fingers (not the tips), press on every part of one breast. Use three levels of pressure: light pressure to feel the tissue just below the skin, medium pressure for the tissue in the middle, and firm pressure to reach the tissue closest to your chest wall and ribs. Move in a circular pattern, working systematically so you cover the entire breast, from the collarbone down to the bra line and from the armpit to the center of your chest. Don’t skip the area extending into the armpit, where breast tissue and lymph nodes are located.
Then check your nipple. Gently squeeze it and note any discharge. Discharge that is spontaneous (leaking without squeezing), comes from one breast only, or appears bloody, clear, or watery is considered more concerning than milky or greenish discharge that comes from both breasts with squeezing.
What Normal Breast Tissue Feels Like
Many people panic the first time they do a thorough check because normal breast tissue isn’t smooth or uniform. It’s common to feel rope-like textures, areas of thickening, or small lumps that shift with your menstrual cycle. Doctors call this nodular or glandular breast tissue, and roughly half of all women experience it at some point. These areas of thickening tend to blend into the surrounding tissue and often feel tender before a period, then improve afterward.
The ridge of firm tissue along the lower curve of each breast (where the underwire of a bra would sit) is also normal anatomy, not a lump. This is why checking monthly matters so much. You’re not trying to identify cancer by touch alone. You’re building a mental map of your own tissue so that a new lump, a spot that feels different from last month, or a thickened area that doesn’t go away after your period stands out.
What a Suspicious Lump Feels Like
There’s no single feel that guarantees a lump is cancerous, but certain characteristics raise more concern. A cancerous lump is more likely to feel hard, with irregular edges that don’t have a clean, round border. That said, some non-cancerous lumps also feel hard, and most breast cancers start out as moveable lumps in their early stages, so a lump that slides under your fingers isn’t automatically safe.
A new lump or area of prominent thickening that persists through your full menstrual cycle, or that feels distinctly different from the rest of your breast tissue, is worth having evaluated. The point isn’t to self-diagnose. It’s to notice the change and act on it.
Men Can Get Breast Cancer Too
Male breast cancer is uncommon but real, and checking is straightforward. Symptoms to watch for include a lump or swelling in the chest or armpit area, nipple discharge (especially if bloody), a change in the size or shape of either side of the chest, a nipple that turns inward, or a rash around the nipple that looks like eczema. Men have a small amount of breast tissue behind the nipple, which is where most male breast lumps develop. The same principle applies: know what’s normal for your body so you notice if something changes.
What Happens If You Find Something
If you notice a new lump, skin change, or any of the visual red flags described above, the next step is a clinical exam with a doctor. During that visit, your doctor will check your breasts, chest wall, underarms, and neck while you’re sitting upright and again while lying on your back.
If the clinical exam confirms something worth investigating, you’ll typically move through imaging tests in a predictable order. A diagnostic mammogram (a targeted breast X-ray) is usually first, sometimes paired with a focused ultrasound that uses sound waves to get a clearer picture of the lump’s structure. An MRI is used less often, reserved for cases where the first two tests don’t give a clear answer.
If imaging still can’t determine what the lump is, the next step is a biopsy, where a small sample of tissue is removed and examined under a microscope. The most common type is a core needle biopsy, where a needle guided by ultrasound takes a small tissue sample. Fine-needle aspiration uses a thinner needle to draw out fluid or cells. In some cases, the entire lump is removed surgically. A biopsy is the only way to definitively confirm or rule out cancer.
Most breast lumps turn out to be non-cancerous. But the value of checking regularly is that it puts you in the best position to catch the ones that aren’t, early, when treatment options are broadest and outcomes are strongest.