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Cancer Disease : Causes To Cancer

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CHAPTER-1
INTRODUCTION
1.1 Cancer Disease: The abnormal growth of cells leads cancer. The damaged cell of mass and tissues or lumps which become harmful. The lump or masses of tissue is known as tumors. The uncontrolled growth of tissue affects human body functions. The Digestive, circulatory and nervous system get affected badly due to tumors. [12] Internal and external factors are activated due to cancer. Hormonal issues, mutation inheritance and body resistances comes under internal factors where as Consumption of tobacco, external radiation and chemicals ingesting comes under external factors which leads to cancer. Figure 1.1(a): Year wise Incident cases and predicted cases of cancer [20]

Figure 1.1(a) represents India’s year wise incident cases of cancer from year 2004 to till now and then predicated cases of cancer till now. It is clear from figure that cancer disease increasing rapidly in India in male and female both categories [20].

1.2 Skin Cancer
Skin cancer caused due to uncontrolled abnormal growth of skin cells. There is rapid multiplication of skin cells due to unrepaired DNA. The unrepaired DNA damages the skin cell in form of mutation or genetic defects and form malignant tumors.

Fig 1.1(b) skin cancer
UVR (Ultra violet rays) is the major cause for skin cancer, due to sunlight and artificial source like sun beds. Most exposure to UVR comes from sunlight, but exposure can also come from artificial sources such as sun beds. Whereas the

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