Hydremia is a medical condition that describes the presence of too much fluid in the blood. Synonyms for hydremia include hyperhydration, water intoxication, and fluid overload. Hyperhydration is a condition where there is an excessive amount of water in the body, leading to hydremia. Water intoxication is a form of hyponatremia caused by the excessive consumption of water, leading to a dilution of electrolytes in the bloodstream. Fluid overload is a condition where there is increased fluid in the body, leading to hydremia. It can be caused by excessive fluid intake, kidney dysfunction, and heart failure. Identifying hydremia early and treating it promptly can help prevent serious health complications.