All growths start in cells. Our bodies are comprised of more than a hundred million (100,000,000,000,000) cells. Growth begins with changes in one cell or a little gathering of cells.
Generally we have quite recently the correct number of every sort of cell. This is on account of cells deliver signs to control how much and how frequently the cells separate. On the off chance that any of these signs are defective or missing, cells may begin to develop and increase a lot of and frame a protuberance called a tumor. Where the malignancy begins is known as the essential tumor.
A few sorts of tumor, called leukemia, begin from platelets. They don’t shape strong tumors. Rather, the disease cells develop in the blood and here and there the bone marrow.
For a tumor to begin, certain progressions occur inside the qualities of a cell or a gathering of cells.