The tumor shrinkage is not obvious after two courses of chemotherapy, and it is still necessary to continue chemotherapy. Chemotherapy refers to the use of chemical drugs through intravenous injection, oral and other ways by the blood transport to reach the tumor, cancer cells to play a role in killing the treatment, chemotherapy is mainly used for the treatment of metastatic cancer patients in the middle and advanced stages. According to the current medical technology, the treatment of middle and late stage cancer mainly focuses on controlling tumor progression, prolonging patients’ survival period, reducing patients’ pain, and striving to achieve long-term survival with tumor, and it is difficult to achieve a complete cure or complete disappearance of tumor in a general sense because the tumor has already metastasized. As the tumor has already metastasized, it is difficult to achieve a complete cure or complete disappearance of the tumor in general. If the tumor shrinks inconspicuously after two courses of chemotherapy, and if the tumor has not shrunk but has not progressed and has not metastasized, the effect of controlling the tumor has been achieved, and the chemotherapy itself needs to be sufficiently curative and standardized, and the interruption of the chemotherapy may easily cause the cancer cells to be resistant to the chemotherapy. Therefore, at this time, if the body can still tolerate the side effects of chemotherapy, it is still necessary to continue chemotherapy, and it is important not to be negligent so as not to delay the condition.