Edema is a medical condition characterized by an abnormal buildup of fluid in the body's tissues. It often occurs when there is damage to the blood vessels or other factors that prevent the proper functioning of the lymphatic system, which helps to drain excess fluids from the body. As a result, the affected areas may swell and become puffy, causing discomfort and potentially impairing mobility. Edema can occur in various parts of the body, including the feet, ankles, legs, hands, and face, and it is often a symptom of another underlying condition such as heart failure, kidney disease, or liver disease. Treatment for edema typically involves addressing the root cause of the problem and may include medication to reduce fluid retention, changes in diet, exercise, and elevating the affected area.