Chemotherapy has certain side effects, and some people are not able to tolerate chemotherapy, mainly because chemotherapy can lead to multi-system side effects, such as hair reduction or loss, loss of appetite, poor appetite, nausea, vomiting, and pain. Chemotherapy can also cause leukopenia, granulocyte deficiency and fever in severe cases, anemia, thrombocytopenia, and neurotoxicity, and the degree of tolerance to chemotherapy varies with each person’s constitution. The side effects of chemotherapy are clearly related to the drugs used in chemotherapy, some drugs such as cisplatin or bleomycin have heavy side effects, especially gastrointestinal reactions, nephrotoxicity, and bleomycin can cause fever, so the degree of tolerance of chemotherapy is different for each person, and there are many patients who terminate chemotherapy because they cannot tolerate the side effects.