Kidney disease patients who feel nausea in the morning should consider that it is caused by toxin retention in the body, edema in the digestive tract, gastrointestinal diseases and other factors. If the glomerular filtration rate of patients with kidney disease decreases, the toxins in the body will be discharged poorly, which will cause toxin retention in the long term, thus infringing on the gastrointestinal tract and causing gastrointestinal discomfort, such as nausea, regurgitation, vomiting and so on. Kidney disease is easy to cause edema, once edema occurs in the mucous membrane of the digestive tract, it will lead to abnormal function of the digestive tract, unable to normal peristalsis and digestion, resulting in nausea symptoms. Gastrointestinal diseases, if the patient combined with chronic gastritis, peptic ulcer, etc. may also appear morning sickness. Morning sickness in patients with kidney disease may be caused by the above factors or other reasons, for any discomfort, it is recommended to go to the regular hospital in time, and standardize the treatment under the guidance of physicians.