No lump, no breast cancer? … Not quite.

When we think about breast cancer, we often spontaneously think of a lump that can be felt under the fingers. So, after a breast self-exam with no obvious abnormality, we reassure ourselves: “I can’t feel anything, so everything must be fine.”

It’s not quite that simple.

Breast cancer can, particularly at an early stage, be present without a clearly palpable lump. But the opposite is also important: many breast changes are benign. The goal is therefore not to worry about every change, but to know which signs warrant a medical consultation.

What changes should get your attention?

Even in the absence of a lump, a new and persistent change deserves medical evaluation, including:

• a recent pulling-in or retraction of the skin or nipple;

• a change in the skin, such as thickening, dimpling, or a “peau d’orange” appearance;

• a recent change in the shape or contour of one breast;

• spontaneous nipple discharge, especially if it is bloody or occurs on only one side;

• an unusual and persistent change in the nipple;

• a newly enlarged lymph node in the armpit or above the collarbone;

• a localized area of the breast that remains unusual or painful.

Important: none of these signs automatically means breast cancer. Cysts, hormonal changes, infections, and many other benign conditions can cause similar symptoms.

What about mammography?

It is important to distinguish between screening and diagnostic evaluation.

Screening mammography is recommended according to age and individual risk, in line with current guidelines.

However, when a woman has a breast change that requires evaluation, mammography may be indicated even outside the framework of routine screening.

In younger women, breast tissue is often denser. Breast ultrasound therefore plays an important role in evaluating a breast abnormality. Depending on age, symptoms, clinical examination, and breast density, mammography may also be necessary.

And importantly: a normal mammogram does not mean that a persistent clinical change should be ignored. Imaging should always be interpreted in the context of the clinical findings.

“But no one in my family has had breast cancer…”

That is reassuring information, but it does not mean that the risk is zero.

The majority of breast cancers occur in women without a known family history.

Conversely, certain family-history patterns may warrant an individualized risk assessment. It is useful to know:

• whether your mother, sister, or daughter has had breast or ovarian cancer;

• the age at which the diagnosis was made;

• whether there are several cases of breast cancer in the family;

• whether a man in the family has had breast cancer;

• whether a genetic mutation, particularly BRCA1 or BRCA2, is known in the family.

And one detail that is often overlooked: your father’s side of the family matters too.

Depending on these factors, a specialist consultation or genetic counselling may be recommended to assess your risk and, if necessary, adapt your screening and surveillance.

Should you examine your breasts every day?

No.

The goal is not to live in fear of breast cancer or to check your breasts every day for a possible abnormality.

It is mainly about knowing what is normal for you and seeking medical advice if a new, unusual, and persistent change appears.

Key message

No lump does not necessarily mean no breast cancer.

But the opposite is equally important:

A breast abnormality does not necessarily mean cancer.

Between these two extremes lies what matters most: recognizing changes, understanding them, and having the appropriate examinations when necessary.

Take care of yourself!

Dr. Sandra Yene Amougui