Cancer is the uncontrolled growth of abnormal cells in the body. Cancerous cells are also called malignant cells. Symptoms of cancer depend on the type and location of the cancer.To kill cancerous cells, it is necessary to specifically kill them and leave the normal good cells. Microsspheres is a recent technology in the treatment of cancerous cells specifically because of their micro sized nature. Application of Microspheres in the treatment of cancer leading to lesser side effect to normal cells is the latest trend in formulation technology.