The causes of electrolyte disorders are as follows: 1, too little intake: such as the recent insufficient intake of sodium, potassium and calcium, so it can lead to electrolyte disorders; 2, too much loss: it can be lost from the gastrointestinal tract, such as vomiting and diarrhea can lead to a decrease in the absorption of potassium and sodium. Patients with acute gastroenteritis can develop hyponatremia and hypokalemia, symptoms include weakness, drowsiness, and even arrhythmia, and can also be lost from the kidneys because the kidneys excrete sodium, so patients who have uremia or take diuretics and other excessive urination can develop hyponatremia. In particular, hyponatremia can easily occur with the application of diuretics that excrete sodium and potassium, including drugs such as furosemide and torasemide. Some patients also have endocrine disorders due to hormone secretion dysfunction.