Cancer ( medicine ), any of more than 100 diseases characterized by excessive, uncontrolled growth of abnormal cells, which invade and destroy other tissues. Cancer develops in almost any organ or tissue of the body, but certain types of cancer are more lethal than others. Cancer is the leading cause of death in Canada and second only to heart disease in the United States. Each year, more than 1. 2 million Americans and 132, 000 Canadians are diagnosed with cancer, and more than 1, 700 people die from cancer each day in the United States and Canada. For reasons not well understood, cancer rates vary by gender, race, and geographic region. For instance, more males have cancer than females, and African Americans are more likely to develop cancer than persons of any other racial and ethnic group in North America. Cancer rates also vary globally - residents of the United States, for example, are nearly three times as likely to develop cancer than are residents of Egypt.
 Introduction to Cancer Treatment
 Cancer treatment varies depending upon your type of cancer, stage of cancer, and overall aspect. Additionally, your treatment may vary depending on whether or not the ambition of your treatment is to cure your cancer, keep your cancer from maturity, or to mitigate the symptoms caused by cancer. Depending on these factors, you may receive one or more of the following:
 Surgery

 Chemotherapy

 Radiation therapy

 Hormonal therapy

 Targeted therapy
 Angiogenesis means the formation of new blood vessels. Angiogenesis is a process controlled by certain chemicals produced in the body. These chemicals console blood vessels or form new ones. Other chemicals, called angiogenesis inhibitors, foremost the process to stop.
 Angiogenesis plays an important role in the growth and spread of cancer. New blood vessels “feed” the cancer cells with oxygen and nutrients, allowing these cells to grow, invade nearby tissue, spread to other parts of the body, and form new colonies of cancer cells.
 Because cancer cannot grow or spread without the formation of new blood vessels, scientists are herculean to find ways to stop angiogenesis. They are studying natural and synthetic angiogenesis inhibitors, also called anti - angiogenesis agents, in the hope that these chemicals will prohibit the growth of cancer by blocking the formation of new blood vessels. In repelling studies, angiogenesis inhibitors have successfully stopped the formation of new blood vessels, causing the cancer to shrink and die.