Taking chemotherapeutic drugs after stomach cancer surgery may lead to yellow face, which may be caused by the damage of chemotherapeutic drugs to liver function, or the inhibition of bone marrow hematopoiesis caused by chemotherapeutic drugs, or the metastasis of liver caused by cancer itself. 1. Liver function damage: chemotherapeutic drugs can lead to liver function damage. When liver function is damaged, the metabolizing ability of liver for bilirubin decreases, which can lead to the increase of bilirubin level in the blood, and then hepatocellular jaundice occurs, which is manifested as yellowish color. 2. Bone marrow suppression: chemotherapeutic drugs can lead to suppression of bone marrow hematopoiesis. When bone marrow hematopoiesis is suppressed, the level of many kinds of blood cells, such as red blood cells, will decrease, and the patient will have anemia, which can be manifested as yellowish color of the face. 3. Metastatic cancer: if metastatic cancer occurs in liver, it will lead to decrease of liver function, which will lead to jaundice and yellowish color. If you have the symptom of yellowish color after taking chemotherapeutic drugs after gastric cancer surgery, please consult your doctor in time and improve relevant examination and ask your doctor to give you treatment as soon as possible so as to avoid delaying your condition.