Normal cells will undergo various types of reproduction methods to produce new cells. Cancer is an unregulated growth of abnormal cells. Cancer covers how a cancer cell divides and how it was spreading to the other parts. Cancer is caused by carcinogenic agents such as Physical and chemical agents. Not only carcinogenic agents other factors such as lifestyle, heredity and smoking leads to cancer. Cancer is restricted to only a specific part called benign tumor and if it is spreaded to the other parts through blood known as malignant cancer.

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