Breast cancer is cancer that develops from breast tissue. Risk factors for developing breast cancer include being female, obesitylack of physical exercise, drinking alcoholhormone replacement therapy during menopauseionizing radiationearly age at first menstruationhaving children late or not at all, older age, prior history of breast cancer, and family history. The balance of benefits versus harms of breast cancer screening is controversial.
How often should you get a breast exam? Can you reduce breast cancer risk? Continue reading to learn five important breast facts.
Some people think that having breast cancer will cause other symptoms apart from a breast change, such as feeling tired, having less energy or weight loss, but this is not the case. Download image. Most breast changes will not be cancer.
Each breast contains 15 to 20 lobes of glandular tissue, arranged like the petals of a daisy. The lobes are further divided into smaller lobules that produce milk for breast-feeding. Small tubes ducts conduct the milk to a reservoir that lies just beneath your nipple. After skin cancer, breast cancer is the most common cancer diagnosed in women in the United States.
Skip to Content. Use the menu to see other pages. This section explains the types of treatments that are the standard of care for early-stage and locally advanced breast cancer.
Cancer occurs when changes called mutations take place in genes that regulate cell growth. The mutations let the cells divide and multiply in an uncontrolled way. Breast cancer is cancer that develops in breast cells.
Whether you or a loved one are worried about developing breast cancer, have just been diagnosed, are going through breast cancer treatment, or are trying to stay well after treatment, this detailed information can help you find the answers you need. For information on breast cancer in men, see Breast Cancer in Men. Get basic information about breast cancer, such as what it is and how it forms, as well as the signs and symptoms of the disease.
Studies have shown that your risk for breast cancer is due to a combination of factors. The main factors that influence your risk include being a woman and getting older. Most breast cancers are found in women who are 50 years old or older. Some women will get breast cancer even without any other risk factors that they know of.