In recent times, the usage of Aluminium is increasing widely. we are consistently consuming it in different food products in different forms as well as in drinking water even without knowing its gradual hazardous aftereffects.Today aluminium is used in almost all industrial fields, traffic and agriculture.The largest markets for aluminium metal and its alloys are in building, transportation and packaging, construction and in electrical equipment. This book, therefore provides us new information about the gadal degenerative effects of aluminium on the histology of small intestine of mammals.