Breast cancer is a type of cancer that begins in the cells of the breast, either in the milk ducts or the lobules, which are responsible for producing milk. It is one of the most common types of cancer, primarily affecting women, though men can also develop breast cancer. The exact cause of breast cancer is not always clear, but various risk factors such as family history, genetics, hormonal influences, and lifestyle factors can contribute to its development. Early detection through screening and awareness is crucial for improving treatment outcomes and survival rates. Regular mammograms and self-breast exams are essential in identifying any unusual changes in the breast tissue. With advances in treatment options, many people diagnosed with breast cancer are living longer, healthier lives.