There are many reasons why patients with chronic kidney failure experience vomiting. To alleviate vomiting, it is first necessary to clarify the cause of vomiting. Generally, if vomiting is caused by an excess of toxins, dialysis treatment may be needed at this time. If it is due to chronic gastritis, drugs that protect the gastric mucosa are needed. Additionally, if it is due to electrolyte disorders, it is essential to correct the electrolyte disturbance to alleviate the symptoms of vomiting. Furthermore, if the vomiting is caused by an infection leading to gastroenteritis, anti-infection drugs are required. Also, some patients with chronic kidney failure may experience nausea and vomiting due to very high blood pressure, which can lead to increased intracranial pressure; in this case, it is necessary to control the blood pressure and reduce intracranial pressure.