Edema is a medical condition characterized by the swelling of body tissues due to excess fluid accumulation. This can occur in various parts of the body, such as the legs, ankles, and feet. Common causes of edema include heart failure, kidney problems, and pregnancy. It can also result from prolonged sitting or standing, as gravity causes fluid to pool in the lower extremities. While edema is often harmless and temporary, it can sometimes indicate a more serious underlying issue. Treatment typically focuses on addressing the root cause, which may involve lifestyle changes, medications, or other interventions. If swelling persists or worsens, it's important to consult a healthcare professional.