Necrosis is derived from the Greek word ‘nekus’ which means 'a dead body.' In medical world necrosis indicates the death phase of cells or tissues. Most of your body cells are programmed for death (apoptosis) naturally after completion of a period of functional phase. However external factors like tissue infection tissue damage due to toxin overload or physical injury trauma to the tissue can cause sudden or unprogrammed death of cells. This sudden death of cells is called necrosis and is commonly associated with conditions like gangrene and avascular necrosis. Programmed cell death is always beneficial for the body and
