When there is swelling of the appendages of the body what is the underlying condition?

Swelling of the appendages, such as arms or legs, can indicate various underlying conditions, including edema, which is often caused by fluid retention due to heart, kidney, or liver issues. It may also result from inflammatory conditions like Arthritis, allergic reactions, or infections. Additionally, venous insufficiency or lymphatic obstruction can contribute to swelling. A proper diagnosis typically requires medical evaluation to determine the specific cause.