cancer types

Cancer is a disease where abnormal cells grow uncontrollably, forming tumors or spreading through the body. Different types of cancer originate in various tissues, such as the lungs, breasts, skin, or digestive organs. For example, lung cancer starts in the lungs, often linked to smoking, while breast cancer begins in breast tissue. Cancers are classified by the type of cell they originate from and how they grow. Some grow quickly and spread early, like aggressive cancers, while others grow slowly. Understanding the specific type helps determine the best treatment approach and prognosis.