Breast Cancer - Signs and Symptoms

What are the signs and symptoms of breast cancer?

  • A change in size or shape such as one breast becoming larger than the other
  • A change in the skin such as puckering or dimpling (like orange peel) or redness
  • A change in the direction or shape of your nipple, especially if it sinks into your breast or becomes irregular in shape
  • An unusual discharge (liquid) from one or both of your nipples
  • A change on or around the nipple such as a rash or flaky or crusted skin
  • Swelling in your armpit or around your collarbone
  • A lump or thickening in your breast
  • Constant pain in one part of your breast or armpit
Click here for a PDF version of our "Breast cancer - what you should know" leaflet. For more information on breast cancer, and how the Irish Cancer Society can support you, check out our dedicated breast cancer information section here.