Breast Cancer Awareness Month: When a New Breast Change Needs an Assessment

A new breast lump, nipple change, or patch of skin that looks different deserves a medical assessment, even though most breast changes are not cancer. Contact a healthcare professional and describe what you noticed; do not wait for your next routine mammogram to ask about a symptom. An evaluation does not mean you have cancer. It is how a clinician checks whether the change has a benign cause or needs further testing.

Breast Cancer Awareness Month is a useful moment to review what to notice and what to do next. The practical message is steady: know what is usual for your body, get an unusual or persistent change checked, and keep screening appointments separate from symptom evaluation.

Which breast changes should you bring up?

Breast cancer does not always cause a lump, and symptoms can differ from person to person. The Centers for Disease Control and Prevention (CDC) lists these possible warning signs:

• A new lump in the breast or underarm, or a thick or firm area that was not there before.
• Swelling, a change in breast size or shape, or a new difference between the breasts.
• Dimpling, puckering, irritation, redness, darkening, scaling, or flaky skin on the breast or around the nipple.
• A nipple that newly pulls inward, changes direction, flattens, or develops pain.
• Nipple discharge that is not breast milk, particularly discharge that appears without squeezing or contains blood.
• New pain in one area of the breast that does not go away.

These signs are not a diagnosis. Cysts, hormone-related changes, infection, injury, and other noncancerous conditions can also cause a lump, tenderness, swelling, or skin changes. The National Cancer Institute (NCI) notes that most breast changes are not cancer, while still advising people to check unusual changes with a clinician. A symptom’s texture, whether it hurts, or whether it feels movable cannot reliably tell you at home what it is.

Breast tissue and breast cancer are not limited to women. Anyone who notices a new change—including men and transgender or nonbinary people—can contact a healthcare professional. If you are pregnant, breastfeeding, taking hormones, or have had breast surgery, mention that context; it may help the clinician interpret the change, but it does not replace an assessment.

When to make an appointment

Call your primary-care clinician, gynecologist, or another healthcare professional when you notice a new, unusual, persistent, or recurring change. If you are unsure whether it is new, explain what you can see or feel and when you first noticed it. You do not need to decide whether it is serious before calling. Try to describe it plainly—for example, “I found a firm area near the outer part of my left breast last week,” or “There is new discharge from one nipple.”

Do not postpone a call just to see whether a symptom appears on your next screening appointment, or because a recent screening mammogram was normal. Screening looks for cancer in people without symptoms. A new change calls for a diagnostic assessment, which is a separate process. If symptoms are rapidly worsening, or you feel acutely ill along with breast redness, warmth, or swelling, seek prompt medical advice; a clinician can assess causes that may need timely treatment.

When you contact the office, ask whether they want to see you and how soon, and where to go if they do not provide breast imaging. If you do not have a regular clinician, a community health center or local health department may help you find an appropriate evaluation site. The right route depends on your location, health history, and access to care.

What happens at a breast assessment?

A clinician will usually ask when the change began, whether it has changed, and whether it comes and goes. They may ask about pain, menstrual or pregnancy history, breastfeeding, medicines, prior breast procedures, and personal or family history of breast or ovarian cancer. They may examine both breasts and the underarm area. You can ask what each part of the exam involves, request a chaperone if available, and say if you need an interpreter or an accommodation.

Depending on your age, symptoms, and medical history, the next step may be diagnostic mammography, ultrasound, or another imaging test. A diagnostic mammogram is different from a routine screening mammogram: it is ordered to investigate a specific symptom or finding and may include additional views. Imaging can identify many benign causes, but sometimes a biopsy—a procedure that removes a small tissue sample for laboratory examination—is needed to determine what a finding is. A referral for imaging or biopsy is a step in finding an answer, not proof of cancer.

Before leaving, ask who will share the results, when you should expect to hear back, and what to do if no one contacts you by then. Keep the appointment details and follow up if the planned next step is delayed or unclear. NCI explains that diagnosis may involve a medical history, physical examination, imaging, and sometimes biopsy; the combination depends on the individual case.

How screening fits in—and what it cannot do

For routine screening, the U.S. Preventive Services Task Force (USPSTF) recommendation issued in April 2024 calls for screening mammography every other year for women ages 40 through 74. This recommendation addresses people without breast symptoms who are at average risk. It does not decide what is right for someone with a new change, a personal history of breast cancer, a known inherited risk, prior chest radiation, or another higher-risk situation. Those circumstances can call for an individualized screening plan.

A screening mammogram is not a guarantee that cancer is absent, and it is not a reason to ignore a change noticed afterward. Conversely, finding a lump does not mean a screening schedule alone will answer the question. Tell the healthcare professional about the symptom so they can choose the appropriate diagnostic path. If you have delayed or missed routine screening, ask how to catch up while also arranging evaluation for the current change.

What to note before you call

A few details can make the first conversation clearer. You can write them down rather than repeatedly checking or trying to diagnose the area yourself:

• What changed: a lump, skin or nipple change, discharge, pain, or a difference in size or shape.
• Where it is and whether it affects one breast or both.
• When you first noticed it and whether it has stayed the same, changed, or gone away and returned.
• Whether there is fever, redness, warmth, swelling, recent injury, pregnancy, or breastfeeding.
• Relevant personal or family history and any previous breast imaging or procedures.

These notes help explain the concern; they cannot confirm or rule out cancer. Avoid repeatedly pressing or squeezing a tender area to test it, and do not rely on online photos, symptom checklists, or an at-home breast exam to determine the cause.

The useful next step

If you have noticed a new breast change, contact a healthcare professional and ask for an assessment. Most changes have causes other than cancer, but a new or unusual symptom cannot be reliably sorted out by touch or appearance alone. Keep routine screening on schedule when it applies to you, and treat a symptom as its own reason to get care.

For current symptom information, see the CDC’s Breast Cancer Symptoms page and the NCI’s Signs and Symptoms of Breast Cancer. For an overview of the diagnostic process, read NCI’s How Breast Cancer Is Diagnosed. The USPSTF’s breast cancer screening recommendation is dated April 30, 2024.