What are the Symptoms of the 14 Most Common Cancers?

2. Breast Cancer

The most common symptom of breast cancer is a lump or mass in the breast tissue, though some people also develop swollen lymph nodes under the armpit. Symptoms such as swelling of the breast tissue or dimpling of the skin may occur without a noticeable lump. Changes in the nipple, such as retraction, discharge, pain, or thickened skin, may also indicate breast cancer. Women are more likely to develop this disease than men.