The breast consists of mammary glands and the ducts that carry the milk produced there to the nipple. Breast cancer is the uncontrolled proliferation of these mammary glands and the cells lining the ducts, which then spread to various parts of the body.
Breast cancer is one of the most common cancers that causes death in women. A woman's lifetime risk of developing breast cancer is approximately 1 in 10. The cancer grows within the breast over time. While it may not cause any symptoms in the early stages, it can later cause symptoms such as palpable hardness in the breast, a pulling sensation in the nipple or skin, and bleeding from the nipple. It then spreads to the lymph nodes under the arm on the same side, causing them to enlarge. In more advanced stages, it can spread to vital organs such as the brain, liver, and lungs, causing death. If you notice any of the following changes, you should consult a doctor without delay: A palpable hardness or lump in the breast that lasts longer than two weeks; Thickening, swelling, or discoloration of the breast skin; Thickening, redness, or soreness on the nipple; Inward retraction of the breast or nipple; Change in the shape of the breast; Change in the position of the nipples; Nipple discharge may be a sign of cancer.