Breast cancer typically results in bloody nipple discharge. If the condition progresses, it can cause the breast to shrink, harden, and the nipple to elevate. Due to the pulling of the milk ducts, the nipple may flatten, retract, or even become inverted. Over several months, there may also be significant enlargement, causing the affected breast's volume to increase and protrude. Breast cancer can invade the chest muscle fascia and muscles, causing the tumor to fix to the chest wall and become difficult to move. Cancer cells block the subcutaneous lymphatic vessels, leading to lymphatic retention and resulting in dermal edema. The skin will then exhibit an orange peel-like texture.