Chemotherapy can be stopped when it is too much for the patient, but once the side effects of chemotherapy have been reduced and the patient is able to tolerate chemotherapy, it is generally recommended to improve chemotherapy as soon as possible, so as to minimize the adverse effects of stopping chemotherapy on tumor control. Chemotherapy is one of the most important means of anti-tumor treatment, and while controlling tumor lesions, it may also cause damage to normal organs, such as severe vomiting, bone marrow suppression, liver and kidney function damage, which may lead to inability to eat, fever, recurrent infections, etc. If the patient cannot tolerate these side effects, it is generally recommended to complete chemotherapy as soon as possible to minimize the adverse effects of stopping chemotherapy on tumor control. If patients cannot tolerate these side effects, they need to stop chemotherapy temporarily, so as not to cause irreversible damages to the patient’s body in order to fight against cancer. However, once the side effects of chemotherapy are reduced and the patient can tolerate it, it is recommended to improve chemotherapy as soon as possible, which is conducive to the effective control of cancer lesions.