Breast cancer is one of the most common cancers affecting women, but an important fact is often overlooked: breast cancer does not always cause noticeable symptoms in its early stages.
That is why knowing what is normal for your breasts—and paying attention to new or unusual changes—can be so important.
A change doesn’t automatically mean cancer. Breasts naturally change with age, hormones, pregnancy, menstruation, and other benign conditions. But when something is new, persistent, or clearly different from your usual appearance, it deserves attention.
1. A New Lump or Thickened Area
A new lump in the breast or underarm is one of the changes people are often advised to have checked.
Many breast lumps are not cancerous. Cysts, fibroadenomas, and other benign conditions can also cause lumps.
Still, you shouldn’t try to determine the cause by touch alone. A healthcare professional can decide whether imaging or other testing is appropriate.
2. A Change in Breast Size or Shape
If one breast suddenly becomes noticeably different in size or shape, don’t simply assume it is a normal variation.
Changes can occur for harmless reasons, but a new and persistent difference should be evaluated.
3. Skin Changes on the Breast
Pay attention to new changes in the skin, including:
- Dimpling or indentations
- Thickening
- Redness or unusual discoloration
- Swelling
- Skin that develops an appearance similar to an orange peel
These changes can have several causes, but persistent or unexplained changes should be discussed with a healthcare professional.
4. Changes in the Nipple
A nipple that suddenly becomes inverted, changes direction, or looks noticeably different from usual may deserve evaluation.
A new change is particularly important if it occurs on only one side and does not return to normal.
5. Unusual Nipple Discharge
Nipple discharge can occur for many reasons and is not automatically a sign of cancer.
However, new spontaneous discharge—particularly if it is bloody or occurs from only one breast—should be medically evaluated.