The statement that the more sensitive the chemotherapy reaction is, the more effective it is, is incorrect, and chemotherapy reaction is sensitive and chemotherapy effect is effective cannot be equated. Chemotherapy reaction is also known as some adverse reactions after chemotherapy, such as myelosuppression symptoms, nausea, vomiting, hair loss, numbness of the hands and feet and other phenomena, all belong to the adverse reactions after chemotherapy, and whether the chemotherapy reaction is sensitive or not is related to the individual’s physique, some people can experience severe nausea and vomiting, severe hair loss after chemotherapy, while some people do not experience. Therefore, it is incorrect to say that the more sensitive the chemotherapy reaction is, the more effective the chemotherapy effect is. If you want to judge whether the chemotherapy is more effective or not, you should judge according to whether the tumor has shrunk and whether the stage has been reduced by PET-CT and pathological biopsy.