Why Congestive Heart Failure Causes Fluid Buildup?

Why does congestive heart failure cause fluid buildup?

A weak heart pumps less blood to your kidneys and causes fluid and water retention
, resulting in swollen ankles, legs, and abdomen (called edema) and weight gain. This can also cause an increased need to urinate during the night as your body attempts to get rid of this excess fluid.

Left-sided heart failure may bring fluid back up in your lungs, causing shortness of breath. Right-sided heart failure may bring fluid back up into your abdomen, legs and feet, causing swelling.

Key word: congestive heart failure fluid buildup

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