Swelling of the Ankles and Feet Symptoms and Causes
Swelling of the feet and ankles can occur as a result of conditions involving the local extremities as well as diseases and conditions that affect the entire body. Examples of causes of swelling of only one ankle or foot are sprains and strains. Sometimes diseases that affect the entire body, such as heart disease and kidney or liver failure, can result in excess fluid buildup (edema) that is often concentrated in the legs and feet, leading to swelling not only of the ankles but also of the feet and lower legs. This can also occur with pregnancy.