Swelling feet after chemotherapy for stomach cancer may be caused by hypoproteinemia and cardiogenic edema. 1. Hypoproteinemia: after chemotherapy, due to the side effects of vomiting, nausea and diarrhea, patients cannot eat or eat very little. Nutritional deficiencies can lead to a decrease in blood albumin concentration and a decrease in plasma colloid osmotic pressure, and the water in the blood will leak into the tissue interstitial space and cause edema. 2. Cardiogenic edema: it is mainly caused by the cardiotoxicity of chemotherapeutic drugs after repeated chemotherapy for gastric cancer patients. Patients with poor cardiac function, especially right heart insufficiency, can cause body circulation stagnation, and the amount of peripheral circulatory return blood is obviously reduced, which can lead to increase of hydrostatic pressure of capillaries, and cause swollen feet and legs, which is aggravated when standing up, and can be alleviated after resting. This kind of edema is aggravated when standing and can be alleviated after resting. It is often first manifested as edema in the sagging part of the body, that is, swelling of the feet. Swollen feet after chemotherapy is a relatively common phenomenon, according to different causes to take different treatment methods. It is recommended that patients eat more protein-rich foods, we must consume enough protein, which can promote the absorption capacity of the liver and the digestive system.