What does a breast lump feel like with breast cancer in men?

A concerning lump may feel firm, uneven, or fixed rather than moving easily beneath the skin. It may sit close to the nipple or behind it, and it can occur on one side. Some people notice nipple retraction, discharge, skin dimpling, or a change in breast shape. These features do not establish the cause, and some cancers cause little discomfort.

Arrange an appointment with a clinician for an examination, especially if the lump remains or changes. The assessment may include a breast examination and imaging, with a sample of tissue if needed. Note when you first noticed it, whether it is growing, and any nipple or skin changes.

Seek prompt medical advice for a new persistent lump, bloody nipple discharge, an inward-turning nipple, an ulcer, or swollen glands in the armpit. Seek urgent care for severe infection-like symptoms, rapidly worsening swelling, or feeling acutely unwell.

Ask what examinations or scans are appropriate, whether the lump needs a tissue sample, and which changes should prompt an earlier review. You can also ask how to check the area without repeatedly irritating it.