Cancer Types

Almost twenty five per cent of all deaths due to non-infectious and non-accidental causes occur due to cancer. Next to heart attacks, this is the biggest killer of mankind. It is usually a disease of middle age and beyond, though some childhood cancers do occur. Cancer consists of cells which have turned malignant. They start growing and multiplying at the cost of normal tissues, destroying the latter in the process. While innocent or benign tumours may show little growth over months or years, cancers have the property of inordinately rapid growth. It is important to recognize the fact in early stages the swelling or mass, in spite of its size and rapid growth is painless. Tumours, including cancers, may appear on the visible surfaces like the skin, breast or penis, where they are open to inspection. When arising from internal organs like the lung, kidney, prostate, ovary, brain, liver, etc.