Cancer starts with changes at the genetic level of individual cells, which may cause some cells to lose control and divide rapidly and uncontrollably.
A condition known as cancer occurs when somebody's cells grow out of control and spread to other body regions. Since the human body contains billions of cells, cancer can develop practically everywhere.
Cancer begins when something goes wrong with this process and your cells continue to divide, preventing the old or abnormal cells from dying as they should. As the cancer cells proliferate out of control, they may suffocate healthy cells. One body struggles to function properly as a result.
Cancerous cells are capable of escaping the area where they first appeared. These cells may leave the lymph nodes and move to other regions of the body.
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