Definition
Leg swelling can affect any part of the legs. This includes the feet, ankles, calves and thighs. Leg swelling may be the result of fluid that builds up. This is called fluid buildup or fluid retention. Leg swelling also may be the result of inflammation in damaged tissues or joints.
Leg swelling is often caused by common things that are easy to identify and are not serious. Injury and standing or sitting for a long time. Sometimes leg swelling indicates a more serious problem, such as heart disease or a blood clot.
Call 911 or seek medical care right away if you have unexplained leg swelling or pain, trouble breathing, or chest pain. These could be signs of a blood clot in your lungs or a heart condition.
