Question

Scientists agree that the development of skin cancer does not adequately explain the distribution of skin pigmentation. Why does it fail to explain this?

Answer 1

Though it is true that melanin pigment , highly present in black people protect them from harmful UV radiation of sun and thereby protect them from skin cancer, it is obviously not true. In blackish people, skin cancer also have been reported and if the exposure to sun is more, skin cancer certainly may occur in black people also. It is also observed that detection of skin cancer often occured at the later stage of cancer development in black people and thus it become more difficult to treat the cancer at this advanced stage in black people. So though black people have some kind of advantage agaist skin cancer due to high melanin content, they are not free from the disease and also suffer from skin cancers.