10/15/2026
Breast cancer doesnβt always start with a lump.
October 15 is Lobular Breast Cancer Awareness Day, and thereβs something we want every one to know.
Invasive lobular carcinoma (ILC) is the 2nd most common type of breast cancer, accounting for approximately 15% of diagnoses.
But unlike other types of breast cancer, ILC often grows in thin, single-file patterns rather than forming a distinct lump.
That means the warning signs can look and feel different.
Changes in breast shape, thickening, dimpling, ni**le changes, or persistent discomfort may be signs worth discussing with your healthcare provider.
And hereβs something important: Lobular breast cancer can be difficult to detect on mammograms, particularly in those with dense breast tissue.
Not every change means cancer, but every unexplained change deserves attention.
To our lobular breast cancer community, we want to hear from YOU.
How was your cancer discovered? Did you experience symptoms, or was it found through routine screening?
If youβre comfortable, share your experience in the comments. Your story may help someone recognize something they hadnβt considered.
Today, weβre supporting the work of the Lobular Breast Cancer Alliance (LBCA) and their mission to advance education, awareness, and research.
Know your body. Know the signs. Share your story.
Whatβs Different?
Lobular breast cancer grows differently.
Cancer cells often grow in thin, single-file patterns rather than forming a distinct lump.
What to Look For
Notice changes in your breasts.
Unusual firmness, thickening, swelling, or changes in breast size or shape.
Visible Warning Signs
Look for subtle changes.
Skin dimpling, puckering, or a ni**le that begins pulling inward.
Other Symptoms
Donβt ignore persistent changes.
New pain in one spot, ni**le discharge, or unusual skin changes deserve attention.
Why Detection Matters
A mammogram may not tell the whole story.
Lobular breast cancer can be harder to see on mammograms, especially in dense breasts.
Advocate for Yourself
You know your body.
If something changes, tell your healthcare provider.
