Chemotherapy is the use of medicine to destroy cancer cells.
Sometimes medicines are put into the blood, usually in a vein, so that they can travel to cells all over the body. This is called systemic chemotherapy.
But chemotherapy also may be:
Chemotherapy can cause side effects, such as nausea and vomiting. Some side effects go away after treatment is finished. But other side effects, such as infertility, may be permanent.
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