Breast cancer occurs when cells in the breast grow abnormally and form a tumor. Symptoms can include lumps, changes in breast shape or skin, and unusual discharge. Risk factors include age, family history, hormone therapy, and lifestyle factors like alcohol consumption. Early detection through regular screenings like mammograms is vital. Treatment options include surgery, chemotherapy, radiation, and hormone therapy, depending on the cancer’s stage and type. Awareness and early intervention are crucial for better outcomes.