The term "cancer types" refers to different varieties or categories of cancer. Cancer is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells, which can ultimately lead to death if not treated. There are over 100 different known types of cancer that affect various parts of the body such as breast, lung, skin, colon, prostate, etc., each with its own characteristics, symptoms, treatments, and outcomes. The specific type of cancer a person has is usually determined by the kind of cells involved in the disease process, whether they are benign or malignant, their rate of growth, and how aggressive they are. Understanding one's cancer type can be crucial for developing an effective treatment plan as different types may respond differently to various therapies.