Excessive hydration in pregnant women

Excess fluid accumulation during pregnancy: Hyperhydration

Although dehydration is a much more common problem, in rare cases during pregnancy the opposite condition can occur — excessive hydration, or hyperhydration. This is a condition in which excess water accumulates in the body, leading to "dilution" of the blood and a dangerous drop in sodium levels (hyponatremia). Usually this is related less to excessive drinking and more to impaired ability of the body to eliminate fluid.

Why can the body retain too much water?

During pregnancy, physiological fluid retention is normal. However, sometimes this process becomes pathological.

• Preeclampsia: This is a serious pregnancy complication, one of the mechanisms of which is vascular damage and impaired kidney function. The kidneys lose the ability to effectively excrete salt and water, leading to severe, generalized edema and increased blood pressure.
• Kidney or heart disease: Chronic conditions that existed before pregnancy can worsen, disrupting the body's ability to regulate water balance.
• Psychogenic polydipsia: In very rare cases, women with certain mental disorders may feel a compulsive need to drink an extremely large amount of water, exceeding the kidneys' capacity.

Consequences of hyperhydration

The main danger, as with general overhydration, is the development of hyponatremia and cerebral edema. Symptoms may include nausea, vomiting, severe headache, confusion, and, in severe cases, seizures. This condition requires immediate medical attention and careful monitoring of electrolyte balance.