Many patients worry about chemotherapy, in fact, they are afraid because of the lack of understanding of chemotherapy. First of all, many people think that tumor patients have poor physique and chemotherapy will hurt their body. In fact, after chemotherapy, many tumor patients’ physique not only will not decrease, but also will be significantly enhanced, because the poor physique of patients at the time of diagnosis is caused by tumor, and chemotherapy removes tumor cells, which can naturally alleviate the toxic effects brought by tumor, and the physique will become better and better. Of course, chemotherapy has certain side effects, but compared with the benefits it brings, chemotherapy is still worthwhile; doctors will also find ways to adjust the drugs and doses to reduce the toxic effects of chemotherapy.