A lump beneath the nipple can be an unexpected and uncomfortable discovery for a man. Some may assume it is simply a result of weight gain, while others might immediately worry about breast cancer.
The reality is that male breast lumps can develop for several reasons, and not all of them are serious. However, knowing which changes deserve attention can prevent unnecessary worry as well as delays in diagnosis.
Key Takeaways
- Breast lumps in men are not always cancerous. Hormonal changes and benign breast conditions are common explanations.
- Gynaecomastia is one of the most frequent causes of breast enlargement or lump-like tissue in men.
- A hard, persistent lump, nipple discharge or changes in the surrounding skin should be medically assessed.
- The appearance and feel of a lump alone cannot reliably establish whether it is benign or cancerous.
What causes breast lumps in men?
Men have breast tissue, although it is less developed than in women. Changes within this tissue can sometimes produce noticeable lumps or swelling. Here are some possible explanations,
Gynaecomastia
Gynaecomastia refers to the enlargement of glandular breast tissue in men, usually due to an imbalance between oestrogen and testosterone.
It can occur during puberty, with ageing or alongside certain medical conditions. Some medications can also contribute to its development. Typical features include,
A firm or rubbery lump beneath one or both nipples.
Breast tenderness or sensitivity.
Swelling that may affect one side more than the other.
Benign breast lumps
Not every lump develops from hormonal changes. Other non-cancerous conditions include,
Lipomas- Soft lumps formed by fatty tissue.
Breast cysts- Fluid-filled sacs, although these are less common in men.
Fat necrosis- Changes in fatty breast tissue, sometimes following an injury.
Male breast cancer
Although uncommon, men can develop breast cancer. It often presents as a lump, sometimes accompanied by nipple or skin changes. Age, family history, inherited genetic factors and certain medical conditions can influence an individual’s risk.
Which breast changes should men pay attention to?
A breast lump does not automatically indicate cancer. Nevertheless, certain changes should not be dismissed, particularly if they are new or persistent.
You should look out for,
- A firm or hard lump, especially if it is painless.
- A lump that does not go away or gradually increases in size.
- Nipple discharge, particularly if it contains blood.
- Nipple inversion or changes in its appearance.
- Skin dimpling, redness or unusual thickening.
- Swelling or a lump in the armpit.
Importantly, the absence of pain does not rule out a serious condition. Similarly, tenderness does not necessarily mean a lump is harmless.
How are male breast lumps investigated?
A clinical assessment helps determine what may be causing the lump. Depending on the findings, investigations may include,
- Clinical examination- Checking the breast tissue, nipples and nearby lymph nodes.
- Ultrasound- Examining the breast tissue to understand the nature of a lump.
- Mammography- Providing additional imaging when clinically indicated.
- Biopsy- Collecting a small tissue sample if imaging or examination findings require further investigation.
Not every patient needs all these investigations. The appropriate approach depends on individual findings.
FAQs
Can men develop breast cancer?
Yes. Men can develop breast cancer because they have breast tissue, although the condition is uncommon.
Are breast lumps in men usually painful?
Not necessarily. Some benign lumps cause tenderness, while others are painless. Breast cancer can also present without pain.
Can gynaecomastia disappear without treatment?
In some cases, particularly during puberty, gynaecomastia may resolve naturally. However, persistent or new breast enlargement should be assessed to identify its cause.
Does weight gain cause breast lumps in men?
Weight gain can increase fatty tissue around the chest, creating breast enlargement. However, this is different from glandular breast tissue growth, and a distinct lump should not automatically be attributed to weight.
Should men get a painless breast lump checked?
Yes. A painless lump can still require investigation. Medical assessment helps determine whether further testing is necessary.
Schedule a Consultation for Medical Advice
Noticing a breast lump can be unsettling, particularly when you are unsure what caused it. While many male breast conditions are benign, new, persistent or unusual changes deserve appropriate assessment.
At Radhika Breast And General Surgery, Dr. Radhika Lakshmanan provides consultations for breast-related concerns, including male breast disorders. If you have noticed a new lump or change in your breast tissue, consider booking a consultation to discuss your symptoms and the appropriate next steps.
Understanding the cause is the first step towards making informed decisions about your breast health.
