What is Cancer?
Cancer refers to a group of diseases characterized by the uncontrolled growth and spread of abnormal cells in the body. If not treated in time, cancer can cause serious illness and death. The body is made up of trillions of cells. Normally, these cells grow, divide, and produce new cells as the body requires. When cells become old or damaged, they die and are replaced by new cells. However, cancer disrupts this process. The abnormal cells continue to grow and divide uncontrollably, forming a mass called a tumor. Not all tumors are cancerous; benign tumors are not harmful and don't spread, while malignant tumors can invade nearby tissues and spread to other parts of the body.
Reference: National Cancer Institute

