EDEMA is a medical condition characterized by the accumulation of fluid in the body's tissues, resulting in SWELLING. It is also known as DROPSY or OEDEMA. It can be caused by a variety of factors, including heart failure, kidney disease, and certain medications. SWELLING is the most common symptom of edema, and it can occur in any part of the body. Treatment for edema depends on the underlying cause, but may include lifestyle changes, medications, and surgery.