How is chemotherapy done?

Chemotherapy is chemical drug therapy, which kills cancer cells by chemical drugs to achieve therapeutic purposes. Chemotherapy is one of the most effective methods to treat cancer at present, and it is also called the three major treatment methods of cancer with surgery and radiotherapy. Surgery and radiotherapy are both local treatments, which are only effective for tumors at the treatment site. It is difficult to effectively treat potential metastatic lesions (cancer cells have actually metastasized, but due to the limitations of current technical means, they cannot be found and detected clinically) and cancers that have already undergone clinical metastasis.

Chemotherapy is a means of systemic treatment. No matter what route of administration (oral administration, intravenous administration and body cavity administration, etc.). ), chemotherapy drugs will spread to most organs and tissues of the whole body with blood circulation. Therefore, chemotherapy is the main treatment for some tumors with systemic spread tendency and metastasis in the middle and late stage.

Extended data:

Chemotherapy should be performed under the following circumstances:

1. Malignant tumors that are sensitive to chemotherapy and are mainly treated by chemotherapy can be cured by standardized chemotherapy. Such as small cell lung cancer, leukemia, malignant lymphoma, choriocarcinoma and germ cell malignant tumor.

2, sensitive or relatively sensitive malignant tumor, preoperative or postoperative chemotherapy.

3. Palliative chemotherapy for advanced malignant tumor.

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