10 Common Cancers and Their Warning Signs

Breast cancer

Estimated new U.S. cases in 2018: 266,120

Signs include:

• A new lump or mass in your breast, armpit, or around your collarbone. Most lumps are painless, but some may be painful or tender. (Many lumps aren’t breast cancer, though. The only way to tell is have your doctor check it.)
• Swelling in your breast
• Irritation, dimpling (which may cause your skin to look like an orange peel), thickening, redness, or scaliness of the skin on your breast
• Pain in your breast or nipple
• Nipple discharge that isn’t breast milk
• Nipple retraction (a nipple that’s “dented” or turned inward)

These signs don’t always mean you have breast cancer. That’s why it’s important to see your doctor or a breast specialist if you notice any changes in your breasts.