There are many kinds of drugs to inhibit the spread of cancer cells: 1. chemotherapy drugs. Chemotherapy drugs need to be selected according to the location and pathological type of the primary tumor, but there are some parts of malignant tumors that are not very sensitive to chemotherapy drugs, such as thyroid cancer, kidney cancer, etc. 2. Targeted drugs. Targeted drugs mainly target cancer cells in the body to kill, while less damage to the surrounding normal cells, for example, kidney cancer can take targeted drugs such as Sorafenib and Sunitinib orally. For example, lung cancer with genetic mutation can be treated with targeted drugs such as gefitinib and erlotinib. 3. Immunological drugs. For example, PD-1 and PD-L1 immune drugs, which are more popularly studied now, can also be used to inhibit the spread of cancer cells. In addition to these western medicine, there are also many traditional Chinese medicines that have certain anti-tumor effects.