Cancer can be treated by different methods. The choice of therapy depends upon the site and grade of the tumour and the stage of the cell growth and as well as the general state and condition of the patient. Many experimental and advances in cancer treatments are also under development. Few cancers effected patients will have only one treatment. But most of the people will have a combination of treatments, such as surgery with chemotherapy or radiation therapy. You may also have targeted therapy, immunotherapy or hormone therapy. Complete removal of the cancer cells and without damage or harm to the rest of the body is the perfect good treatment and is often the goal in practice. Sometimes this can be proficient by surgery, but the tendency of cancers to invade adjacent tissue or to spread to distant sites by microscopic metastasis often limits its effectiveness radiotherapy and chemotherapy can have a negative effect on normal cells.