How Does Chemotherapy for Lung Cancer Work?
Cancer cells are abnormal cells that grow uncontrollably at a rapid rate. These cells invade the surrounding tissue, often forming tumors. Chemotherapy uses powerful drugs to kill cancer cells. These drugs are usually given intravenously, through the blood veins, where they circulate throughout the body, destroying rapidly growing cells. Unfortunately, some normal cells in the body also multiply rapidly, such as those in the hair follicles, bone marrow, and lining of the mouth and intestines. Chemotherapy drugs can’t tell the difference between these healthy cells and cancer cells, so some healthy cells may also be damaged during treatment. This is one reason for some of the side effects that can occur during chemotherapy.
