Cancer is one of the deadly diseases in the human life. Cancer develops in almost any organ or tissue of the body, but certain types of cancer are more life-threatening than others. There are many type of cancer such as prostate cancer, lung cancer, uterine cancer, colorectal cancer, kidney cancer, leukemia, ovarian cancer, breast cancer, and many more. The breast cancer is more common in wealthy countries, while cervical cancer is more common in poor countries. Breast cancer is the most common cancer found in women, other than skin cancer.

However medical research found something interesting. Researchers found that the adrenal glands sometimes compensated for the loss of testes or ovaries and produced more hormones that continued to feed the cancer cells. To treat these patients, adrenalectomy —removal of the adrenal glands—and cortisone-replacement therapy are needed. Scientist developed a simple blood test to monitor the spread of cancer cells within the body. His research opened a new chapter in cancer treatment. Hormonal therapy for certain types of cancer, such as prostate cancer, is effective and produces less unpleasant side effects for patients than does chemotherapy or radiation treatment. There is also another way that is by using drugs called trastuzumab, marketed under the brand name Herceptin. From those facts we can see how fast the medical researches give benefit to the disease and patient.