Signs & Symptoms of Low Sodium Levels in the Blood


The condition of having low sodium levels in the blood is known as hyponatremia. Hyponatremia has several signs and symptoms related to nerve and muscle function as well as brain triggers, as sodium is necessary for the proper function of these systems in the body. According to, signs of low sodium levels in the blood include confusion and disorientation, lethargy, nausea, muscle cramps and twitching and, in worst-case scenarios, seizures and coma.

Confusion and Disorientation lists mental issues, such as confusion and disorientation, as common signs of low sodium levels. These occur because sodium is necessary for some chemical reactions in the brain.

Lethargy and Exhaustion

Lethargy and exhaustion are symptoms that are also related to low levels of sodium going through the brain, according to


Nausea is another symptom of low sodium levels in the blood, according to the website.

Muscle Cramps and Twitching

Sodium levels have a dramatic effect on muscle function, so consequently, low sodium levels in the blood can cause muscle cramping and twitching, says.

Seizures and Coma

Severe muscle twitches caused by low blood sodium can eventually escalate to seizures and even coma, according to the website. These severe symptoms can occur when sodium levels in the brain dip so low that water seeps into brain cells.

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