Chemotherapy is the abbreviation of chemotherapy, which kills tumor cells by chemotherapeutic drugs so as to play the purpose of anti-tumor treatment. For patients with poor appetite after chemotherapy, there are the following treatment suggestions: 1. Do a good job of psychological counseling, drink more water to promote the excretion of chemotherapy drugs as soon as possible, so as to reduce the gastrointestinal discomfort caused by chemotherapy drugs. 2. It is recommended to eat an easily digestible, light, high-protein diet, and follow the principle of eating less and more meals, and if necessary, take appetite-enhancing drugs, such as megestrol and methylhydroxyprogesterone. Measures such as the above can help patients to pass the discomfort period of chemotherapy.