Actor Lucy Davis, 53, known for her role in The Office, was diagnosed with incurable breast cancer 18 months ago after noticing a small, hard spot on her breast. The cancer had already spread to her spine, hip, and ribs, and she has announced that chemotherapy is no longer an option.

This case highlights that lumps are not the only indicator of breast cancer. According to Dr. Liz O'Riordan, a consultant breast surgeon who has had breast cancer three times, approximately one in 20 people are diagnosed with metastatic cancer, meaning it has already spread, and some may show no symptoms other than changes in the breast.

Dr. O'Riordan, who previously informed up to ten women daily about their breast cancer diagnoses, emphasized the devastation of telling patients they cannot be cured. She noted an increase in breast cancer diagnoses, particularly in women under 50, with one in seven women expected to develop the disease by age 80.

Despite awareness campaigns, screening mammogram attendance hovers around six out of ten women, and only four in ten check their breasts monthly. A 2025 Breast Cancer Now YouGov survey indicated that women often forget to check, lack confidence, or are unsure how to perform self-examinations. Dr. O'Riordan learned breast self-examination techniques during medical school and recommends resources like her YouTube video and the Breast Cancer Now and CoppaFeel websites for proper guidance.

Recognizing less common signs is crucial. Experts outline 12 potential indicators of breast cancer beyond a palpable lump:

Non-Lump Symptoms

  • Skin color change: Redness in lighter skin tones or darkening, purplish, or bruised appearance in darker skin tones. The affected area may be painful or hot to the touch. While often due to infection like mastitis, persistent redness can signal Inflammatory Breast Cancer.
  • Swollen skin or an orange peel texture: This appearance, known as peau d'orange, can also be a sign of Inflammatory Breast Cancer, where blocked lymph vessels cause fluid buildup.
  • Dimpling or tethering in the skin: A small indentation may appear when the breast skin is pulled by an underlying tumor. This can be observed by checking in a mirror with arms by the sides, raised in the air, or pressed against the hips.
  • Nipple turning inward: While some nipples are naturally inverted, a sudden change where a nipple becomes pulled inward and cannot be everted may indicate a tumor behind it.
  • Nipple rash: A persistent rash, especially if it grows, is red, or sore, and does not respond to standard creams, could be Paget's Disease, a rare form of breast cancer affecting the nipple.
  • Bloody or clear nipple discharge: While some discharge is normal for women in their thirties and forties, clear or bloody discharge can be a sign of cancer.
  • Breast thickness or fullness: Changes in breast size or fullness, particularly if one breast becomes noticeably larger or feels different, can be indicative of lobular breast cancer, which grows in sheets and can be difficult to detect on scans.
  • Change in breast size or shape: Significant, sudden alterations in the size or shape of one breast compared to the other may also signal breast cancer, even without a distinct lump.

Other Indicators

  • A breast lump: While common, any new breast lump should be examined and scanned, as it could be cancerous. It's important to know what feels normal for your breasts through regular checks.
  • Lump in the armpit: Swollen lymph nodes in the armpit, larger than a pea and not associated with illness, could be a sign of breast cancer or other cancers.
  • Recurrent breast cysts: While breast cysts are common, persistent or complex cysts that keep returning in the same location warrant medical investigation.
  • Persistent, one-sided breast pain: While breast pain alone is rarely a sign of cancer, it can be related to cancer if accompanied by other symptoms like a lump or dimpling.

Experts emphasize that regular breast self-examination can help detect signs of cancer at an early stage, increasing the chances of a successful outcome. For individuals like Lucy Davis, however, subtle signs were missed, underscoring the need for vigilance and awareness of all potential symptoms.