Chemotherapy is one of the three major means of tumor treatment, but many tumor patients have some incorrect understanding of chemotherapy, which leads to the reduction of chemotherapy efficacy and increase of side effects, and even chemotherapy failure is not uncommon. Many tumor patients heard that the side effects of chemotherapy are very heavy, especially vomiting, hair loss and other side effects make many patients afraid of chemotherapy, so many tumor patients prefer to choose radiotherapy or other treatments and refuse chemotherapy. In fact, as long as reasonable and effective symptomatic treatment is carried out, chemotherapy side effects can be effectively controlled. Moreover, many tumors in the middle and late stages are mainly treated with chemotherapy as a comprehensive treatment, without the participation of chemotherapy, effective control of tumors cannot be achieved. Since you have unfortunately suffered from tumor, you must build up confidence, overcome chemotherapy reactions and strive to overcome cancer. 2. Give up chemotherapy after tumor control Many tumor patients think that their tumors are under control and there is no need for chemotherapy after one or two cycles of chemotherapy with obvious efficacy and effective control of symptoms, which is actually a very wrong understanding. In fact, this is a very misconception. The initial chemotherapy for tumor must complete 4-6 cycles of regular chemotherapy. Otherwise, the tumor will recur or metastasize. If we wait until then, it will be more difficult to treat and the treatment effect will be greatly reduced. In fact, there are many kinds of chemotherapy regimens for the same tumor, so it is important not to blindly deny chemotherapy even if it is not effective in the short term. If a chemotherapy regimen is not effective, another chemotherapy regimen may be able to achieve the desired effect. Many patients think that the more treatment means the better, like to pile up the treatment means, such as chemotherapy at the same time they take Chinese medicine. Unbeknownst to them, herbal medicines have liver and kidney damage, and the interaction with chemotherapy drugs is not clear, some herbal medicines may aggravate the toxic side effects of chemotherapy drugs, and some reduce the efficacy of chemotherapy drugs. Therefore, do not take Chinese medicine during chemotherapy to avoid interaction with chemotherapy drugs to affect the efficacy. Many tumor patients are willing to spend money on treatment, but not on examination, thinking that examination is a waste of money. In fact, some examinations can detect the toxic side effects of chemotherapy, such as blood routine, liver and kidney function, etc., which can let doctors make treatment in time to avoid the failure of chemotherapy caused by excessive toxic side effects of chemotherapy; and some imaging examinations can evaluate the size of lesions and judge the efficacy of chemotherapy program. Therefore, the examination and chemotherapy are equally important during chemotherapy and should not be neglected.