Breast cancer is a cancer that develops from breast
tissue. Signs of breast cancer may include a lump in the breast, a
change in breast shape, dimpling of the skin, milk rejection, fluid
coming from the nipple, a newly inverted nipple, or a red or scaly patch
of skin. In those with distant spread of the disease, there may be bone
pain, swollen lymph nodes, shortness of breath, or yellow skin.Risk
factors for developing breast cancer include obesity, a lack of physical
exercise, alcohol consumption, hormone replacement therapy during
menopause, ionizing radiation, an early age at first menstruation,
having children late in life or not at all, older age, having a prior
history of breast cancer, and a family history of breast cancer
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