+**Fluid retention** is the accumulation of excess fluid within the body's tissues or cavities. This often manifests as [Swelling](/wiki/swelling) and can be a sign of underlying conditions affecting fluid balance, such as [Edema](/wiki/edema). It represents an imbalance in the delicate regulation of bodily fluids.
+## See also
+- [Kidney](/wiki/kidney)
+- [Heart](/wiki/heart)
+- [Electrolyte](/wiki/electrolyte)
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