Lump in the Breast or Underarm

• A new lump or mass in the breast or underarm area is one of the most common signs of breast cancer. These lumps are often hard and painless, though some can be tender.

Changes in Breast Size or Shape

• Noticeable changes in the size or shape of the breast may indicate a problem. This can include swelling or shrinkage of the breast, especially if it occurs in just one breast.

Dimpling or Skin Changes

• Skin texture changes, such as dimpling, puckering, or redness, can be symptoms of breast cancer. The skin may also take on a texture similar to an orange peel (peau d’orange).

Nipple Discharge or Inversion

• Any unusual nipple discharge, whether clear, bloody, or another color, should be investigated. Nipple inversion (when the nipple turns inward) can also be a symptom.

Persistent Breast Pain

• While breast pain is more often associated with benign conditions, persistent or unusual pain in the breast or nipple area should be checked by a healthcare provider.

Redness or Flaky Skin in the Nipple Area

• Red, scaly, or thickened skin in the nipple area can be a sign of Paget's disease, a rare form of breast cancer.

Swelling or Lump in the Underarm

• Swelling or a lump in the lymph nodes under the arm can occur before a breast tumor is large enough to be felt in the breast itself.