Problems with the kidneys may cause intestinal flatulence and fluid retention, mainly due to fluid retention and electrolyte disturbances. The main function of the kidneys is to excrete endocrine function, decreased kidney function can appear water, poor metabolic waste removal, electrolyte disorders. 1. Protein reduction, water can not be discharged, the accumulation of the body, there will be gastrointestinal stasis edema, which occurs peristaltic slowing, so see abdominal distension. 2. Decrease in excretory function, electrolyte disorders, especially blood potassium levels, too high or low can be out of muscle weakness, gastrointestinal peristalsis slows down and see abdominal distension. Whether kidney disease or intestinal flatulence, should go to the regular hospital to identify the cause, under the guidance of the doctor standardized treatment.