Low sodium can be supplemented by eating high sodium food, etc. If necessary, intravenous sodium supplementation is also needed, and more importantly, the treatment of primary diseases. 1. When the sodium is low, we should choose foods with high sodium content, but we need to pay attention to the gradual supplementation to avoid the phenomenon of hypernatremia in a large amount of supplementation at one time, and the common foods are pickled foods, bacon, salted vegetables and so on. 2. Sodium can also be supplemented by oral or intravenous infusion, such as concentrated sodium chloride solution, but regular review is required during this period. Low sodium if food supplementation does not see obvious results, to the hospital in time, under the guidance of the doctor to comply with the doctor’s instructions intravenous sodium supplementation therapy. 3. In addition, it is necessary to treat the primary disease that causes low sodium, such as acute myeloid leukemia end-stage malignant disease caused by low sodium, need to be Vinacrine, azacitidine and other drugs, including specialized treatment. When the symptoms of low sodium are not relieved, it is necessary to pay attention to timely hospital consultation, identify the cause of the disease and take targeted treatment under the guidance of physicians to avoid delaying the condition. Daily attention should be paid to appropriate exercise, ensure water intake, reasonable diet, avoid low sodium, no sodium diet.