If the tumor shrinks or disappears, it is a sign that chemotherapy is effective, such as lymphoma chemotherapy is very effective, and it is possible to be cured through chemotherapy. Chemotherapy is a common form of anti-tumor treatment, and there are more systemic intravenous chemotherapy, intravenous chemotherapy with oral chemotherapy, local interventional chemotherapy and so on. If the lump does not shrink significantly, but it does not develop and is relatively stable, it means that chemotherapy is also effective. In some cases, the lump continues to grow during chemotherapy, and the patient’s symptoms are more severe, such as abdominal distension, abdominal pain, fever, inability to eat, etc. This indicates that chemotherapy is not effective, and it is necessary to consider changing to other regimens of chemotherapy, or combining targeted drugs, radiotherapy, etc.