Pump failure: The right side of your heart accepts blood returning from the extremities. If it can't keep up, blood starts to back up in the extremities and causes swelling. Think of a basement pump. If its not powerful enough to keep up with the water seeping in, the basement will flood.
Answered 8/26/2017
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Pump isn't working: If the pump is having a hard time getting the blood into the heart it will end up staying in the dependent areas (ie legs) so one will get swollen legs and ankles.
Answered 11/22/2013
5.8k views
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