Cancer cells are cells that divide relentlessly, forming solid tumors or flooding the blood with abnormal cells. Method biological process may be a traditional process utilized by the body for growth and repair. A parent cell divides to create 2 female offspring cells, and these female offspring cells are wants to build new tissue or to exchange cells that have died owing to aging or harm. Healthy cells stop dividing once there's not a necessity for additional female offspring cells; however cancer cells still manufacture copies. They’re conjointly able to unfold from one a part of the body to a different in an exceedingly method called metastasis.