Euvolemic Hyponatremia

Euvolemic hyponatremia is a disorder in which the concentration of sodium in the blood is lower than normal, while the total amount of fluid in the body stays relatively balanced.

How can it show up? Depending on its severity, it may be associated with fatigue, headache, nausea or difficulty concentrating, though sometimes it goes unnoticed.

Why does it happen? It is linked to the way the body regulates water and salts, a process in which various hormones and organs take part.

Who studies it? Its assessment falls to the internist and the endocrinologist, who can interpret the context in which it appears. Since it is usually detected on blood tests, discussing the results with a professional is the appropriate way to understand it.