Early breast cancer usually does not make symptoms. But as the cancer spread and grows, it can change how the breast shapes, looks or feels. At the beginning a lump may be too small to identify. Frequent, an abnormal region turns up on an x-ray screening result of the breast (mammogram), which may leads to further diagnosing.
In some cases, the first sign of breast cancer is a new mass or lump in the breast that you can feel directly using your hand. A lump that is hard, painless, and has uneven edges is commonly to be cancer. But sometimes cancers can be soft, tender, and rounded. So it is important to check anything unusual by your doctor.
According to the American Cancer Society, any of the following unusual changes in the breast can be a symptom of breast cancer:
Women should see her health care provider about any symptom that does not go away. These symptoms are not always due to cancer. Another health problem could cause them. If someone have any of these symptoms, the best thing is tell the doctor so that the problems can be diagnosed and treated immediately.