The Department of Veterans Affairs (VA) provides health care at little or no charge to more than 5 million veterans annually.
There are many potential causes of foot, leg, and ankle swelling. In most cases, swelling occurs as a result of certain lifestyle factors, such as: Being overweight: Excess body mass can decrease blood circulation, causing fluid to build up in the feet, legs, and ankles.
Left leg swelling may be the result of a leg injury. Leg swelling that occurs following an amputation should be reported to a doctor immediately. Applying an ice pack can help treat swelling. A blood clot is a potentially serious condition that can cause leg swelling.