It is impossible to stop chemotherapy to cure oneself, while stopping chemotherapy without authorization may lead to the progression of the disease. Chemotherapy is a common treatment for malignant tumors, which can stop the production of cancer cells and inhibit their spread, so as to shrink the tumor and control the progress of the disease. Once chemotherapy is used, it is usually in the middle or late stage of the disease, and the tumor will not heal itself because of the cessation of chemotherapy; the cancer cells will not die out on their own, so they cannot heal themselves. If chemotherapy is stopped, it may induce the drug-resistant ability of the tumor, and the cancer cells will speed up the division again, which not only affects the therapeutic effect, but even leads to the aggravation of the disease. Therefore, once chemotherapy is started, it cannot be stopped easily, or else the previous work will be wasted, and it may even affect the safety of life. However, if very serious side effects occur during the process, you can consider whether to stop chemotherapy according to your own situation under the guidance of your doctor.