What is breast cancer?
Breast cancer is the most common cancer among women after skin cancer. One in eight women in the United States (roughly 12%) will develop breast cancer in their lives. It is also the second leading cause of cancer death in women after lung cancer. In recent years, mortality from breast cancer has decreased, perhaps due to greater awareness and screening for this type of cancer and better treatment.
Breast cancer is a disease that occurs when cells in the breast tissue change (or change) and continue to multiply. These abnormal cells are usually pooled together to form a tumor. A tumor is cancerous (or malignant) when these abnormal cells invade other parts of the mammary gland or spread to other parts of the body through the bloodstream or lymphatic system (or metastasize), and the network of vessels and nodes in the body. a role in fighting infection.
Breast cancer usually begins in the mammary's milk-producing glands (called lobules) or in the form of tubular channels carrying lobes to lobes. Less frequently, cancer begins in the fatty and fibrous connective tissue of the mammal. New breast cancer cases are about 100 times more common in women than in men, but yes, men can also have breast cancer. Male breast cancer is rare, but anyone with breast tissue can develop breast cancer.